| Epidemiology of invasive candidiasis
Bays DJ , Jenkins EN , Lyman M , Chiller T , Strong N , Ostrosky-Zeichner L , Hoenigl M , Pappas PG , Thompson Iii GR . Clin Epidemiol 2024 16 549-566 Invasive candidiasis (IC) is an increasingly prevalent, costly, and potentially fatal infection brought on by the opportunistic yeast, Candida. Previously, IC has predominantly been caused by C. albicans which is often drug susceptible. There has been a global trend towards decreasing rates of infection secondary to C. albicans and a rise in non-albicans species with a corresponding increase in drug resistance creating treatment challenges. With advances in management of malignancies, there has also been an increase in the population at risk from IC along with a corresponding increase in incidence of breakthrough IC infections. Additionally, the emergence of C. auris creates many challenges in management and prevention due to drug resistance and the organism's ability to transmit rapidly in the healthcare setting. While the development of novel antifungals is encouraging for future management, understanding the changing epidemiology of IC is a vital step in future management and prevention. |
| Neurological symptoms and cause of death among young children in low- and middle-income countries
Ajanovic S , Madewell ZJ , El Arifeen S , Gurley ES , Hossain MZ , Islam KM , Rahman A , Assefa N , Madrid L , Abdulahi M , Igunza KA , Murila F , Revathi G , Christopher M , Sow SO , Kotloff KL , Tapia MD , Traor CB , Mandomando I , Xerinda E , Varo R , Kincardett M , Ogbuanu IU , Nwajiobi-Princewill P , Swarray-Deen A , Luke R , Madhi SA , Mahtab S , Dangor Z , du Toit J , Akelo V , Mutevedzi P , Tippett Barr BA , Blau DM , Whitney CG , Bassat Q . JAMA Netw Open 2024 7 (9) e2431512 IMPORTANCE: The emergence of acute neurological symptoms in children necessitates immediate intervention. Although low- and middle-income countries (LMICs) bear the highest burden of neurological diseases, there is a scarcity of diagnostic and therapeutic resources. Therefore, current understanding of the etiology of neurological emergencies in LMICs relies mainly on clinical diagnoses and verbal autopsies. OBJECTIVE: To characterize the association of premortem neurological symptoms and their management with postmortem-confirmed cause of death among children aged younger than 5 years in LMICs and to identify current gaps and improve strategies to enhance child survival. DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study was conducted between December 3, 2016, and July 22, 2022, at the 7 participating sites in the Child Health and Mortality Prevention Surveillance (CHAMPS) network (Bangladesh, Ethiopia, Kenya, Mali, Mozambique, Sierra Leone, and South Africa). Minimally invasive tissue sampling was performed at the CHAMPS sites with specimens from deceased children aged younger than 5 years. This study included deceased children who underwent a premortem neurological evaluation and had a postmortem-confirmed cause of death. Data analysis was performed between July 22, 2022, and January 15, 2023. MAIN OUTCOMES AND MEASURES: Descriptive analysis was performed using neurological evaluations from premortem clinical records and from postmortem determination of cause of death (based on histopathology, microbiological testing, clinical records, and verbal autopsies). RESULTS: Of the 2127 deaths of children codified during the study period, 1330 (62.5%) had neurological evaluations recorded and were included in this analysis. The 1330 children had a median age of 11 (IQR, 2-324) days; 745 (56.0%) were male and 727 (54.7%) presented with neurological symptoms during illness before death. The most common postmortem-confirmed neurological diagnoses related to death were hypoxic events (308 [23.2%]), meningoencephalitis (135 [10.2%]), and cerebral malaria (68 [5.1%]). There were 12 neonates with overlapping hypoxic events and meningoencephalitis, but there were no patients with overlapping meningoencephalitis and cerebral malaria. Neurological symptoms were similar among diagnoses, and no combination of symptoms was accurate in differentiating them without complementary tools. However, only 25 children (18.5%) with meningitis had a lumbar puncture performed before death. Nearly 90% of deaths (442 of 511 [86.5%]) with neurological diagnoses in the chain of events leading to death were considered preventable. CONCLUSIONS AND RELEVANCE: In this cross-sectional study of children aged younger than 5 years, neurological symptoms were frequent before death. However, clinical phenotypes were insufficient to differentiate the most common underlying neurological diagnoses. The low rate of lumbar punctures performed was especially worrying, suggesting a challenge in quality of care of children presenting with neurological symptoms. Improved diagnostic management of neurological emergencies is necessary to ultimately reduce mortality in this vulnerable population. |
| Moving beyond research to public health practice: Spread and scale of interventions that support healthy childhood growth
Goodman AB , Bosso E , Petersen R , Blanck HM . Child Obes 2024 Equitable access to affordable, effective, and safe obesity prevention and treatment remains a problem for many children and families in the U.S. In 2023, the American Academy of Pediatrics (AAP) published its first Clinical Practice Guideline (CPG) for pediatric obesity evaluation and treatment, aiding the field's awareness of effective approaches. CDC has supported the adapting and packaging of existing, effective Family Healthy Weight Programs that deliver CPG-recommended intensive behavioral treatment for kids. Currently, at least six family-centered programs are recognized by CDC and can be implemented in clinical and community settings to support child health. CDC and other national partners are coordinating the movement of these research-tested FHWPs into public health practice. This work includes implementing FHWPs in over 60 US communities and supporting national-level infrastructure improvements. CDC is committed to engaging with stakeholders to help scale proven strategies that ensure all children receive the care they need to thrive. |
| Comparing scale up of status quo hypertension care against dual combination therapy as separate pills or single pill combinations: an economic evaluation in 24 low- and middle-income countries
Hutchinson B , Husain MJ , Nugent R , Kostova D . eClinicalMedicine 2024 75 Background: International hypertension treatment guidelines recommend initiating pharmacological treatment with combination therapy and using fixed dose single pill combinations (SPCs) to improve adherence. However, few countries have adopted combination therapy as a form of first-line treatment and SPC uptake in low- and middle-income countries is low due in part to cost and availability. Evidence on costs and cost-effectiveness is needed as health authorities consider incorporating new recommendations into national clinical practice guidelines. Methods: Over a 30-year time horizon, we used an Excel-based Markov cohort state-transition model to assess the financial costs (screening, treatment, program, and supply chain costs) and socio-economic outcomes (health outcomes, value of lives saved, productivity losses averted) of three antihypertensive treatment scenarios. A baseline scenario scaled treatment among adults age 30 plus while assuming continuation of the widespread practice of initiating treatment with monotherapy. Scenarios one and two scaled treatment while initiating patients on two antihypertensive medications, either as separate pills or as a SPC. Analysis inputs are informed by country-specific data, meta-analyses of the blood-pressure lowering of antihypertensive medications, and own-studies of medication costs. We compared costs, cost-effectiveness, and net-benefits across scenarios, and assessed uncertainty in a one-way sensitivity analysis. Findings: Using dual combination therapy (with or without SPCs) as first-line treatment would increase costs relative to current practices that largely use monotherapy. Required additional annual resources averaged as much as 3.6, 0.9, and 0.2 percent of government health expenditures in the analysis’ low-, lower-middle, and upper-middle income countries. However, across 24 countries, over the next 30 years, combination therapy with separate pills could save 430,000 more lives and combination therapy with SPCs could save 564,000 more lives compared to baseline treatment practices. Administration of two or more medications using SPCs generated higher net benefits in most countries (16/24) compared to the baseline scenario. Interpretation: First line treatment employing SPCs is likely to generate higher net benefits compared to status quo treatment practices in countries with relatively higher incomes. To improve population health, national health systems would benefit from reducing structural and other barriers to the use of combination therapy and SPCs. Funding: This journal article was supported by TEPHINET cooperative agreement number 1NU2HGH000044-01-0 funded by the USCenters for Disease Control and Prevention. © 2024 The Author(s) |
| Lung cancer incidence, 2019-2020, United States: The potential impact of the COVID-19 pandemic
Kava CM , Siegel DA , Sabatino SA , Qin J , Richards TB , Jane Henley S . Ann Epidemiol 2024 PURPOSE: Cancer incidence declined during the COVID-19 pandemic in part due to health care delivery challenges. We examined the impact of the COVID-19 pandemic on changes in lung cancer incidence. METHODS: We used 2019-2020 US Cancer Statistics data from 49 cancer registries covering 97% of the US population. We calculated the number of new lung cancer diagnoses in 2019 and 2020, age-adjusted lung cancer incidence rates per 100,000 persons, and 2019-to-2020 percentage changes in incidence rates. We also calculated number and percentage of new lung cancer diagnoses by month and stage at diagnosis. RESULTS: The age-adjusted lung cancer incidence rate per 100,000 persons was 47.9 in 2019 vs. 41.4 in 2020-a 13.6% decrease. Differences in the percentage change in incidence rates were observed by age, race and ethnicity, US census region, histology, and stage at diagnosis. A higher percentage of people were diagnosed at distant stage in 2020 than 2019. CONCLUSIONS: This report provides new insight into subgroups that experienced the greatest decline in observed lung cancer incidence during the first year of the COVID-19 pandemic. The findings can be used to inform intervention efforts to improve lung cancer screening, diagnosis, and treatment. |
| Applying a bayesian spatiotemporal model to examine excess county-level cardiovascular disease death rates during the COVID-19 pandemic
Vaughan AS , Quick H , Beck KB , Woodruff RC , DeLara D , Casper M . Am J Epidemiol 2024 Amid the COVID-19 pandemic, national cardiovascular disease (CVD) death rates increased, especially among younger adults. County-level variation has not been documented. Using county-level CVD deaths (ICD-10 codes: I00-I99) from the US National Vital Statistics System, we developed a Bayesian multivariate spatiotemporal model to estimate excess CVD death rates in 2020 based on trends from 2010-2019 for adults aged 35-64 and ≥65 years. Among adults aged 35-64 years, 64.7% of counties experienced significant excess CVD death rates. The median county-level CVD death rate in 2020 was 150 per 100,000 persons, which exceeded the predicted rate for 2020 (median excess death rate: 11 per 100,000; median excess rate ratio: 1.08). Among adults aged ≥65 years, 15.2% of counties experienced significant excess CVD death rates. The median county-level CVD death rate was 1,546 per 100,000 in 2020, which exceeded the predicted rate in 2020 (median excess death rate: 48 per 100,000, median excess rate ratio: 1.03). Counties with significant excess death rates in 2020 were geographically dispersed. In 2020, disruptions of county-level CVD death rates were widespread, especially among younger adults, suggesting the continued importance of CVD prevention and treatment in younger adults in communities across the country. |
| SARS-CoV-2 seroprevalence in people living with HIV in South Sudan
Chun HM , Lodiongo DK , Milligan K , Lesuk GJ , Patel D , Shiraishi RW , Martin D , Simon AK , Dirlikov E , Patel HK , Ellenberger D , Worku HA , Duong YT , Ekong RO , Katoro JS , Hussen SA , Lokore ML , Wani G , Bunga S . IJID Regions 2024 12 Objectives: The burden of SARS-CoV-2 infection in people living with HIV (PLHIV) in South Sudan is unknown. Methods: We conducted a cross-sectional seroprevalence survey of SARS-CoV-2 immunoglobulin (Ig) G antibodies and other diseases of public health importance (strongyloidiasis, toxoplasmosis) in PLHIV in South Sudan during April 1, 2020-April 30, 2022. We used a multiplex SARS-CoV-2 immunoassay to detect IgG antibodies targeting the SARS-CoV-2 spike, receptor binding domain, and nucelocapsid (N) proteins, and antigens for other pathogens (Strongyloides stercoralis and Toxoplasma gondii). Results: Among 3518 samples tested, seroprevalence of IgG antibodies to SARS-CoV-2 spike protein and receptor binding domain 591 and nucleocapsid ranged from 1.4% (95% confidence interval [CI]: 0.9-2.1%) in April-June 2020 to 53.3% (95% CI: 49.5-57.1%) in January-March 2022. The prevalence of S. stercoralis IgG ranged between 27.3% (95% CI: 23.4-31.5%) in October-December 2021 and 47.2% (95% CI: 37.8-56.8%) in July-September 2021, and, for T. gondii IgG, prevalence ranged from 15.5% (95% CI: 13.3-17.9%) in April-June 2020 to 36.2% (95% CI: 27.4-46.2%) July-September 2021. Conclusions: By early 2022, PLHIV in South Sudan had high rates of SARS-CoV-2 seropositivity. Surveillance of diseases of global health concern in PLHIV is crucial to estimate population-level exposure and inform public health responses. © 2024 The Authors |
| Identifying effective strategies for improving engagement in HIV prevention and care among transgender persons in the United States: A systematic review
Crepaz N , Peters O , Higa DH , Mullins MM , Collins CB . AIDS Behav 2024 This systematic review synthesized published literature (2000 - 2023) to identify HIV interventions specifically designed for transgender persons in the United States (PROSPERO registration number: CRD42021256460). The review also summarized strategies for improving outcomes related to the four pillars of the Ending the HIV Epidemic (EHE) initiative in the United States: Diagnose, Treat, Prevent, and Respond. A comprehensive search was conducted using the Centers for Disease Control and Prevention's HIV Prevention Research Synthesis Project database, which included over 120,000 citations from routine systematic searches in CINAHL, EMBASE, Global Health, MEDLINE, PsycInfo, and Sociological Abstracts. Of 23 interventions that met inclusion criteria, 94% focused on transgender women of color and 22% focused on young transgender persons aged 15-29 years old. Most interventions focused on Treat or Prevent, few focused on Diagnosis, and none focused on Respond. Twenty interventions (87%) showed improvement in at least one EHE related outcome and a quarter of these effective interventions were tested with randomized controlled trials. Common strategies observed in effective interventions include the following: engaging the community in intervention development; pilot-testing with the focus population to ensure appropriateness and acceptability; addressing social determinants of health (e.g. stigma, discrimination, violence) through empowerment and gender-affirming approaches; increasing access to care, prevention, and services through co-location and one-stop shop models; and utilizing peer-led counseling, education, support, and navigation. Continuous effort is needed in addressing gaps, including more research for transgender men and rural settings and for how best to adopt and adapt best practices for subgroups of transgender population. |
| Changes in HIV pre-exposure prophylaxis awareness and use among males who inject drugs who have sex with men by sexual identity, 19 US urban areas, 2018 & 2022
Eustaquio PC , Burnett J , Prejean J , Chapin-Bardales J , Cha S . Aids 2024 BACKGROUND: Men who inject drugs who have sex with men (MWIDSM) may acquire HIV through injecting drugs or sex. Interventions to increase awareness of HIV preexposure prophylaxis (PrEP) have focused on gay/bisexual MSM and may not be reaching heterosexual-identifying men or people who inject drugs (PWID). We explored changes in PrEP awareness and use among MWIDSM from 2018 to 2022 by sexual identity. METHODS: We used data from the 2018 and 2022 National HIV Behavioral Surveillance among PWID recruited via respondent-driven sampling in 19 urban areas in the US. We examined changes in PrEP awareness and use over time by sexual identity among HIV-negative men who inject drugs and who had sex with another man in the past 12 months using log-linked Poisson regression models with robust standard errors with an interaction term between year and sexual identity. RESULTS: Among 758 HIV-negative MWIDSM (463 in 2018; 295 in 2022), nearly all sample participants were likely indicated for PrEP (94.2 and 92.9%, respectively). PrEP awareness increased from 2018 to 2022 among gay/bisexual-identifying MWIDSM [45.5-65.5%; aPR = 1.49, 95% confidence interval (95% CI) = 1.30-1.70] but remained stable for heterosexual-identifying MWIDSM (39.4-40.8%; aPR = 1.01, 95% CI 0.75-1.36). PrEP use remained low among all MWIDSM (2.5-7.7%, among heterosexually identifying; 15.3 to 10.2% among gay/bisexual-identifying). CONCLUSION: PrEP awareness increased among gay/bisexual-identifying MWIDSM but not among heterosexual-identifying. PrEP use was low for all MWIDSM. Public health initiatives catered to MWIDSM should focus on improved campaigns and expanding PrEP accessibility in existing healthcare, harm reduction, and social services. |
| Evolving characteristics of decedents with hepatitis A listed as a cause of death, United States, 2011-2021
Hofmeister MG , Ly KN , Yin S , Spradling PR . J Viral Hepat 2024 Hepatitis A is a vaccine-preventable disease that typically causes mild illness. Hepatitis A outbreaks associated with person-to-person transmission have been widespread in the United States since 2016. We used public-use US Multiple Cause of Death data to compare characteristics and listed comorbidities among decedents with hepatitis A-listed deaths during non-outbreak (2011-2015) and outbreak (2017-2021) periods and assessed the median age at death among decedents with and without hepatitis A-listed deaths during the outbreak period. From the non-outbreak period to the outbreak period, hepatitis A-listed deaths more than doubled (from 369 to 801), while the hepatitis A-listed age-adjusted mortality rate increased 150% (p < 0.001). When compared with the non-outbreak period, hepatitis A-listed decedents during the outbreak period were more frequently male, aged 18-49 years, non-Hispanic White, died in an inpatient setting, and had hepatitis A listed as their underlying cause of death. The median age at death for hepatitis A-listed decedents was significantly younger during the outbreak period overall and among females (62 and 66 years, respectively) compared with the non-outbreak period (64 and 72 years, respectively, p < 0.001). During the outbreak period, median age at death for hepatitis A-listed decedents was 14 years younger than decedents without hepatitis A listed. Compared with the general US population, decedents with hepatitis A listed on the death certificate died at younger ages during 2017-2021. Efforts are needed to improve hepatitis A vaccination coverage among adults recommended for hepatitis A vaccination to prevent additional premature hepatitis A deaths. |
| Tracking the burden, distribution, and impact of Post-COVID conditions in diverse populations for children, adolescents, and adults (Track PCC): passive and active surveillance protocols
Jones RM , Andrews JG , Dalton AF , Dixon BE , Dzomba BJ , Fernando SI , Pogreba-Brown KM , Ortiz MR , Sharma V , Simmons N , Saydah SH . BMC Public Health 2024 24 (1) 2345 BACKGROUND: Track PCC includes five geographic surveillance sites to conduct standardized population-based surveillance to estimate and track Post-COVID Conditions (PCC) by age, sex, race/ethnicity, geographic area, severity of initial infection, and risk factors among persons with evidence of SARS-CoV-2 infection (based on the Council of State and Territorial Epidemiologist [CSTE] case definitions for confirmed cases or laboratory-confirmed evidence of infection). METHODS: The study will estimate the incidence, prevalence, including temporal trends, and duration and severity of PCC symptoms, among children, adolescents, and adults. PCCs include a broad range of symptoms and conditions that continue or develop after acute SARS-CoV-2 infection or COVID-19 illness. Surveillance includes both passive and active components for diverse populations in Arizona, Indiana, and Utah as well as the Bronx Borough, NY, and part of Philadelphia County, PA. Passive surveillance will utilize electronic health records and health information exchanges within each site catchment area to longitudinally follow persons with COVID-19 to estimate PCC occurring at least 30 days after acute COVID-19 illness. Active surveillance will utilize self-report of PCCs from detailed surveys of persons ages 7 years and older with evidence of SARS-CoV-2 infection in the past 3 months. Respondents will complete follow-up surveys at 6-, 12- and 18-months post-infection. DISCUSSION: These data can help identify which groups are most affected by PCC, and what health differences among demographic groups exist, as well as indicate potential barriers to care. These additional levels of granularity can inform public health action and help direct needed clinical care for patients. |
| Ebola disease outbreak caused by the Sudan virus in Uganda, 2022: a descriptive epidemiological study
Kabami Z , Ario AR , Harris JR , Ninsiima M , Ahirirwe SR , Ocero JRA , Atwine D , Mwebesa HG , Kyabayinze DJ , Muruta AN , Kagirita A , Tegegn Y , Nanyunja M , Kizito SN , Kadobera D , Kwesiga B , Gidudu S , Migisha R , Makumbi I , Eurien D , Elyanu PJ , Ndyabakira A , Naiga HN , Zalwango JF , Agaba B , Kawungezi PC , Zalwango MG , King P , Simbwa BN , Akunzirwe R , Wanyana MW , Zavuga R , Kiggundu T . Lancet Glob Health 2024 BACKGROUND: Uganda has had seven Ebola disease outbreaks, between 2000 and 2022. On Sept 20, 2022, the Ministry of Health declared a Sudan virus disease outbreak in Mubende District, Central Uganda. We describe the epidemiological characteristics and transmission dynamics. METHODS: For this descriptive study, cases were classified as suspected, probable, or confirmed using Ministry of Health case definitions. We investigated all reported cases to obtain data on case-patient demographics, exposures, and signs and symptoms, and identified transmission chains. We conducted a descriptive epidemiological study and also calculated basic reproduction number (R(o)) estimates. FINDINGS: Between Aug 8 and Nov 27, 2022, 164 cases (142 confirmed, 22 probable) were identified from nine (6%) of 146 districts. The median age was 29 years (IQR 20-38), 95 (58%) of 164 patients were male, and 77 (47%) patients died. Symptom onsets ranged from Aug 8 to Nov 27, 2022. The case fatality rate was highest in children younger than 10 years (17 [74%] of 23 patients). Fever (135 [84%] of 160 patients), vomiting (93 [58%] patients), weakness (89 [56%] patients), and diarrhoea (81 [51%] patients) were the most common symptoms; bleeding was uncommon (21 [13%] patients). Before outbreak identification, most case-patients (26 [60%] of 43 patients) sought care at private health facilities. The median incubation was 6 days (IQR 5-8), and median time from onset to death was 10 days (7-23). Most early cases represented health-care-associated transmission (43 [26%] of 164 patients); most later cases represented household transmission (109 [66%]). Overall R(o) was 1·25. INTERPRETATION: Despite delayed detection, the 2022 Sudan virus disease outbreak was rapidly controlled, possibly thanks to a low R(o). Children (aged <10 years) were at the highest risk of death, highlighting the need for targeted interventions to improve their outcomes during Ebola disease outbreaks. Initial care-seeking occurred at facilities outside the government system, showing a need to ensure that private and public facilities receive training to identify possible Ebola disease cases during an outbreak. Health-care-associated transmission in private health facilities drove the early outbreak, suggesting gaps in infection prevention and control. FUNDING: None. |
| RSV burden and prevention in children in LMICs
MacNeil A , McMorrow M . Lancet Glob Health 2024 |
| Lessons learnt from assessing and improving accuracy and positive predictive value of the national HIV testing algorithm in Nigeria
Mpamugo AO , Iriemenam NC , Bashorun A , Okunoye OO , Bassey OO , Onokevbagbe E , Jelpe T , Alagi MA , Meribe C , Aguolu RE , Nzelu CE , Bello S , Ezra B , Obioha CA , Ibrahim BS , Adedokun O , Ikpeazu A , Ihekweazu C , Croxton T , Adebajo SB , Okoye MIJ , Abimiku A . Afr J Lab Med 2024 13 (1) 2339 BACKGROUND: HIV testing remains an entry point into HIV care and treatment services. In 2007, Nigeria adopted and implemented a two-test rapid HIV testing algorithm of three HIV rapid test kits, following the sequence: Alere Determine (first test), Unigold(TM) (second test), and STAT-PAK(®) as the tie-breaker. Sub-analysis of the 2018 Nigeria HIV/AIDS Indicator and Impact Survey data showed significant discordance between the first and second tests, necessitating an evaluation of the algorithm. This manuscript highlights lessons learnt from that evaluation. INTERVENTION: A two-phased evaluation method was employed, including abstraction and analysis of retrospective HIV testing data from January 2017 to December 2019 from 24 selected sites supported by the United States President's Emergency Plan for AIDS Relief programme. A prospective evaluation of HIV testing was done among 2895 consecutively enrolled and consented adults, aged 15-64 years, accessing HIV testing services from three selected sites per state across the six geopolitical zones of Nigeria between July 2020 and September 2020. The prospective evaluation was performed both in the field and at the National Reference Laboratory under controlled laboratory conditions. Stakeholder engagements, strategic selection and training of study personnel, and integrated supportive supervision were employed to assure the quality of evaluation procedures and outcomes. LESSONS LEARNT: The algorithm showed higher sensitivity and specificity in the National Reference Laboratory compared with the field. The approaches to quality assurance were integral to the high-quality study outcomes. RECOMMENDATIONS: We recommend comparison of testing algorithms under evaluation against a gold standard. WHAT THIS STUDY ADDS: This study provides context-specific considerations in using World Health Organization recommendations to evaluate the Nigerian national HIV rapid testing algorithm. |
| Evaluation of a modified vesikari severity score as a research tool for assessing pediatric acute gastroenteritis
Wikswo ME , Weinberg GA , Szilagyi PG , Selvarangan R , Harrison CJ , Klein EJ , Englund JA , Sahni LC , Boom JA , Halasa NB , Stewart LS , Staat MA , Schlaudecker EP , Azimi PH , Johnston SH , Mirza SA . J Pediatric Infect Dis Soc 2024 A modified Vesikari severity score (MVSS) is a useful research tool for assessing severity of acute gastroenteritis. We present a MVSS for studies in which a follow-up assessment of symptoms cannot be obtained. The MVSS significantly correlated with other markers of severity, including illness duration and work and school absenteeism. |
| A decade of implementing preexposure prophylaxis (PrEP) clinical guidelines: The vital role of nurses to expand access to PrEP in the United States
Kamitani E , Carnes N , Patel R , Ballard D , Bonacci RA , Odunsi S . J Assoc Nurses AIDS Care 2024 35 (5) 373-375 |
| Changes in health indicators among caregivers - United States, 2015-2016 to 2021-2022
Kilmer G , Omura JD , Bouldin ED , Walker J , Spears K , Gore J , Ali AR , McGuire LC . MMWR Morb Mortal Wkly Rep 2024 73 (34) 740-746 Caregivers provide support to persons who might otherwise require placement in long-term care facilities. Approximately one in five U.S. adults provides care to family members or friends who have a chronic health condition or disability. Promoting the well-being of this large segment of the population is a public health priority as recognized by the 2022 National Strategy to Support Family Caregivers. Although negative associations between caregiving and caregiver health are known, changes in the health status of caregivers over time are not. Data from the 2015-2016 and 2021-2022 Behavioral Risk Factor Surveillance System were analyzed to compare changes in the prevalence of 19 health indicators among cross-sectional samples of caregivers and noncaregivers at different time points. Caregivers experienced improvements in prevalence of four health indicators, whereas six worsened. Some health indicators, such as cigarette smoking, improved for both caregivers and noncaregivers, although smoking prevalence remained higher for caregivers (16.6% versus 11.7%). Prevalence of lifetime depression increased for both groups and remained higher among caregivers (25.6%) than among noncaregivers (18.6%). During 2021-2022, age-adjusted estimates for caregivers were unfavorable for 13 of the 19 health indicators when compared with noncaregivers. Strategies for supporting caregivers are available, and integrating these with existing programs to address mental health and chronic diseases among this population might improve caregiver well-being. For example, many community organizations support caregivers by offering interventions designed to relieve caregiver strain, including skills training, support groups, and care coordination. |
| Measles population immunity profiles: Updated methods and tools
Li X , Goodson JL , Perry RT . Vaccines (Basel) 2024 12 (8) Measles is a highly contagious disease and remains a major cause of child mortality worldwide. While measles vaccine is highly effective, high levels of population immunity are needed to prevent outbreaks. Simple but accurate tools are needed to estimate the profile of population measles immunity by age to identify and fill immunity gaps caused by low levels of vaccination coverage. The measles immunity profile estimates and visualizes the percentage of each birth cohort immune or susceptible to measles based on measles vaccination coverage. Several tools that employed this approach have been developed in the past, including informal unpublished versions. However, these tools used varying assumptions and produced inconsistent results. We updated the measles population immunity profile methodology to standardize and better document the assumptions and methods; provide timely estimates of measles population immunity; and facilitate prompt actions to close immunity gaps and prevent outbreaks. We recommend assuming that the second dose of the measles-containing vaccine (MCV2) and doses given during supplementary immunization activities (SIAs) first reach children who have been previously vaccinated against measles, so that previously unvaccinated children are reached only when the coverage of MCV2 or SIA is higher than the coverage achieved by all previous measles vaccination opportunities. This updated method provides a conservative estimate of immunization program impact to assess measles outbreak risk and to facilitate early planning of timely preventive SIAs to close population immunity gaps. |
| Maternal exposure to tap water disinfection by-products and risk of selected congenital heart defects
Michalski AM , Luben TJ , Zaganjor I , Rhoads A , Romitti PA , Conway KM , Langlois PH , Feldkamp ML , Nembhard WN , Reefhuis J , Yazdy MM , Lin AE , Desrosiers TA , Hoyt AT , Browne ML . Birth Defects Res 2024 116 (9) e2391
BACKGROUND: The use of chlorine to treat drinking water produces disinfection by-products (DBPs), which have been associated with congenital heart defects (CHDs) in some studies. METHODS: Using National Birth Defects Prevention Study data, we linked geocoded residential addresses to public water supply measurement data for DBPs. Self-reported water consumption and filtration methods were used to estimate maternal ingestion of DBPs. We estimated adjusted odds ratios and 95% confidence intervals using logistic regression controlling for maternal age, education, body mass index (BMI), race/ethnicity, and study site to examine associations between CHDs and both household DBP level and estimated ingestion of DBPs. RESULTS: Household DBP exposure was assessed for 2717 participants (1495 cases and 1222 controls). We observed a broad range of positive, null, and negative estimates across eight specific CHDs and two summary exposures (trihalomethanes and haloacetic acids) plus nine individual DBP species. Examining ingestion exposure among 2488 participants (1347 cases, 1141 controls) produced similarly inconsistent results. CONCLUSIONS: Assessing both household DBP level and estimated ingestion of DBPs, we did not find strong evidence of an association between CHDs and DBPs. Despite a large study population, DBP measurements were available for less than half of participant addresses, limiting study power. |
| Persistent endocrine-disrupting chemicals and incident uterine leiomyomata: A mixtures analysis
Wesselink AK , Claus Henn B , Fruh V , Geller RJ , Coleman CM , Schildroth S , Sjodin A , Bethea TN , Noel NL , Baird DD , Wegienka G , Wise LA . Sci Total Environ 2024 951 175871 BACKGROUND: Uterine leiomyomata (UL; fibroids) are hormone-dependent neoplasms that can cause significant gynecologic morbidity. Studies have documented associations between concentrations of persistent endocrine-disrupting chemicals (EDCs) and UL incidence; however, few have assessed the effects of EDC mixtures on UL. METHODS: In the Study of Environment, Lifestyle, and Fibroids, a prospective cohort study, participants attended study visits at baseline and approximately every 20 months for up to 10 years; at each visit, they completed questionnaires, provided blood samples, and underwent standardized ultrasound examinations. In baseline plasma samples (n = 1155), we quantified concentrations of polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and organochlorine pesticides using high-resolution mass spectrometry. We selected nine EDCs detected in >60 % of samples (4 PCBs, 4 PBDEs, and 2,2-bis(4-chlorophenyl)-1,1-dichloroethene (p,p'-DDE)) and conducted probit Bayesian kernel machine regression with hierarchical variable selection to estimate effects of the EDC mixture and individual EDCs on UL incidence, adjusting for potential confounders. RESULTS: During 10 years of follow-up, 32 % of participants developed ultrasound-detected UL. The EDC mixture was not appreciably associated with the probit of UL (β comparing all EDCs at their 75th vs. 50th percentile:= - 0.01, 95 % credible interval [CrI]: -0.11, 0.10). However, individual EDC concentrations were associated with UL in opposing directions: PCB138/158 was positively associated with UL (β for 25th-to-75th-percentile increase when all other chemicals were set to their 50th percentile = 0.18, 95 % CrI: -0.09, 0.44), whereas PBDE99 and p,p'-DDE were inversely associated with UL (β = -0.06, 95 % CrI: -0.21, 0.10 and β = -0.12, 95 % CrI: -0.34, 0.10, respectively). There was little evidence of interaction between EDCs. CONCLUSION: In this prospective ultrasound study, a mixture of persistent EDCs was not appreciably associated with incident UL during 10 years of follow-up, but individual EDCs were associated with UL in opposite directions. |
| Expanding the use of mathematical modeling in healthcare epidemiology and infection prevention and control
Grant R , Rubin M , Abbas M , Pittet D , Srinivasan A , Jernigan JA , Bell M , Samore M , Harbarth S , Slayton RB . Infect Control Hosp Epidemiol 2024 1-6 During the coronavirus disease 2019 pandemic, mathematical modeling has been widely used to understand epidemiological burden, trends, and transmission dynamics, to facilitate policy decisions, and, to a lesser extent, to evaluate infection prevention and control (IPC) measures. This review highlights the added value of using conventional epidemiology and modeling approaches to address the complexity of healthcare-associated infections (HAI) and antimicrobial resistance. It demonstrates how epidemiological surveillance data and modeling can be used to infer transmission dynamics in healthcare settings and to forecast healthcare impact, how modeling can be used to improve the validity of interpretation of epidemiological surveillance data, how modeling can be used to estimate the impact of IPC interventions, and how modeling can be used to guide IPC and antimicrobial treatment and stewardship decision-making. There are several priority areas for expanding the use of modeling in healthcare epidemiology and IPC. Importantly, modeling should be viewed as complementary to conventional healthcare epidemiological approaches, and this requires collaboration and active coordination between IPC, healthcare epidemiology, and mathematical modeling groups. |
| Genetic diversity in Salmonella enterica in outbreaks of foodborne and zoonotic origin in the USA in 2006-2017
Trees E , Carleton HA , Folster JP , Gieraltowski L , Hise K , Leeper M , Nguyen TA , Poates A , Sabol A , Tagg KA , Tolar B , Vasser M , Webb HE , Wise M , Lindsey RL . Microorganisms 2024 12 (8)
Whole genome sequencing is replacing traditional laboratory surveillance methods as the primary tool to track and characterize clusters and outbreaks of the foodborne and zoonotic pathogen Salmonella enterica (S. enterica). In this study, 438 S. enterica isolates representing 35 serovars and 13 broad vehicle categories from one hundred epidemiologically confirmed outbreaks were evaluated for genetic variation to develop epidemiologically relevant interpretation guidelines for Salmonella disease cluster detection. The Illumina sequences were analyzed by core genome multi-locus sequence typing (cgMLST) and screened for antimicrobial resistance (AR) determinants and plasmids. Ninety-three of the one hundred outbreaks exhibited a close allele range (less than 10 allele differences with a subset closer than 5). The remaining seven outbreaks showed increased variation, of which three were considered polyclonal. A total of 16 and 28 outbreaks, respectively, showed variations in the AR and plasmid profiles. The serovars Newport and I 4,[5],12:i:-, as well as the zoonotic and poultry product vehicles, were overrepresented among the outbreaks, showing increased variation. A close allele range in cgMLST profiles can be considered a reliable proxy for epidemiological relatedness for the vast majority of S. enterica outbreak investigations. Variations associated with mobile elements happen relatively frequently during outbreaks and could be reflective of changing selective pressures. |
| Building quality control for molecular assays in the global measles and rubella laboratory network
Bankamp B , Anderson R , Hao L , Lopareva E , Chen MH , Kim G , Beard RS , Mori Y , Otsuki N , Ryo A , Rota PA . Vaccines (Basel) 2024 12 (8)
More than 100 laboratories in the World Health Organization Global Measles and Rubella Laboratory Network (GMRLN) perform nucleic acid-based methods for case confirmation of measles or rubella infections and/or strain surveillance (genotyping). The quality of laboratory data is critical to ensure that diagnostic results and country reports to regional verification committees are based on accurate data. A molecular External Quality Assurance (mEQA) program was initiated by the US-CDC in 2014 to evaluate the performance of laboratories in the network. The inclusion of testing for measles and rubella viruses, with a focus on detection and genotyping, plus the diversity of assays and platforms employed required a flexible and comprehensive proficiency testing program. A stepwise introduction of new evaluation criteria gradually increased the stringency of the proficiency testing program, while giving laboratories time to implement the required changes. The mEQA program plays an important role in many processes in the GMRLN, including informing plans for the training of laboratory staff, access to reagents, and the submission of sequence data to global databases. The EQA program for Local Public Health Institutes in Japan is described as an example for national mEQA programs. As more laboratories initiate molecular testing, the mEQA will need to continue to expand and to adapt to the changing landscape for molecular testing. |
| Changes in partner seeking and sexual behavior among United States adults during the first two years of the COVID-19 pandemic
Rushmore J , Copen CE , Schneider J , Lamuda P , Taylor BG , Kirkcaldy RD , Learner ER , Bernstein KT . Sex Transm Dis 2024 51 (8) 527-533
BACKGROUND: The COVID-19 pandemic may have influenced partner-seeking and sexual behaviors of adults. METHODS: We examined cross-sectional survey data collected at the end of the first year (n = 1161) and second year (n = 1233) of the COVID-19 pandemic by the National Opinion Research Center's nationally representative, probability-based AmeriSpeak panel. Data were analyzed to (1) quantify behavioral changes across pandemic years, (2) examine changes of in-person dating prevalence during year 2, and (3) assess risk perception for acquiring COVID-19 or HIV/STIs through new partnerships during year 2. Weighted percentages were calculated for responses; univariate relationships between demographic characteristics and outcomes were assessed. RESULTS: Prevalence of new partners for dating remained stable across pandemic years (year 1: n = 1157 [10%]; year 2: n = 1225 [12%]). The prevalence of in-person sex with new partners was also stable (year 1: n = 1157 [7%], year 2: n = 1225 [6%]), marking a decline from a prepandemic estimate (2015-2016: 16%). Partner-seeking experiences varied by age and sexual identity in both years, and by race/ethnicity during year 2. Reports of in-person dating fluctuated throughout year 2, without clear relationship to viral variants. Respondents who met new partners in person during year 2 generally reported greater concern and preparedness for reducing risks associated with HIV/STIs than COVID-19. CONCLUSIONS: The prevalence of US adults seeking new partners for dating or sex remained stable across pandemic years. During future public health emergencies, public health officials are encouraged to offer guidance for reducing disease risks in partnerships, while emphasizing sexual health and providing tailored messaging for persons more susceptible to infection. |
| Changes in self-reported mask use after the lifting of state-issued mask mandates in 20 US States, February-June 2021
Ajiboye AS , Dunphy C , Vo L , Howard-Williams M , Ladva CN , Robinson SJ , McCord R , Gakh M , Weber R , Sunshine G . J Public Health Manag Pract 2024 OBJECTIVE: In April 2020, the US Centers for Disease Control and Prevention (CDC) recommended community masking to prevent the transmission of SARS-CoV-2. Since then, a total of 39 US states and DC issued mask mandates. Despite CDC recommendations and supporting evidence that masking reduces COVID-19 community transmission, from January to June 20, 2021 states lifted their mask mandates for all individuals. This study examined the association between lifting state-issued mask mandates and mask-wearing behavior in 2021. DESIGN: We estimated a difference-in-difference model, comparing changes in the likelihood for individuals to wear a mask in states that lifted their mask mandate relative to states that kept their mandates in place between February and June of 2021. SETTING: Individuals were surveyed from across the United States. PARTICIPANTS: We used masking behavior data collected by the Porter Novelli View 360 + national surveys (N = 3459), and data from state-issued mask mandates obtained by CDC and the University of Nevada, Las Vegas. MAIN OUTCOMES: The outcome variable of interest was self-reported mask use during the 30 days prior to the survey data collection. RESULTS: In the overall population, lifting mask mandates did not significantly influence mask-wearing behavior. Mask wearing did significantly decrease in response to the lifting of mask mandates among individuals living in rural counties and individuals who had not yet decided whether they would receive a COVID-19 vaccine. CONCLUSION: Policies around COVID-19 behavioral mitigation, specifically amongst those unsure about vaccination and in rural areas, may help reduce the transmission of COVID-19 and other respiratory viruses, especially in communities with low vaccination rates. |
| Understanding U.S. caregivers' perceptions of youth's sexting motivations and concerns about their children's sexting involvement: Fall Consumerstyles Survey, 2018 and 2019
Steele-Baser M , Allen CT , Mercado MC , Cooper AC , Wagner RL . Arch Sex Behav 2024 Sexting is associated with a range of negative outcomes among youth. While parents and caregivers can play a critical role in the prevention of youth risk behaviors, nationally representative research has yet to examine U.S. caregivers' perceptions of youth's sexting motivations to help inform sexting risk prevention efforts. Using 2018 and 2019 Fall ConsumerStyles online panel survey data (N = 1,034), this study estimated and examined U.S. caregivers' perceptions of youth's sexting motivations and the associations of such perceptions with concerns about their children (ages 10-17) getting and sharing sexts (sexual messages, photos, videos). Weighted percentages were calculated to describe caregivers' perceptions of youth's sexting motivations. Logistic regression analyses were performed to examine associations between caregivers' perceptions and concerns about youth's sexting. Results suggest that many caregivers perceive youth sext because they think it is harmless (72.79%), they want to be popular or boast (70.51%), they have low self-esteem (52.00%), and/or it is part of their sexual exploration process (49.05%). Fewer caregivers perceived that youth sext because they want revenge (21.80%) or to harm others (16.06%). Caregivers' concerns about their children getting and sharing sexts were related to perceiving that youth sext because of low self-esteem, sexual exploration processes, or to harm others. The perception that youth sext because they want to be popular or boast was related to concern about youth getting but not sharing sexts. Odds of concern were significantly higher among caregivers from some racial/ethnic subgroups. Findings can inform sexting prevention efforts that include caregivers. |
| Jurisdiction-level costs of the initial phase of the COVID-19 vaccination program in the United States, December 20, 2020-May 31, 2021
Kim C , Dunphy C , Duggar C , Pike J . Vaccine 2024 42 (24) 126287 This study aimed to quantify U.S. jurisdiction-level costs related to the COVID-19 Vaccination Program by estimating the per-dose-administered cost during December 20, 2020-May 31, 2021, from a combined federal and local government perspective. Costs were limited to vaccine purchase, administration (including operations and wastage), and local redistribution by jurisdictions. Data were collected through publicly available sources, published literature, and a survey of 62 jurisdictions (38 responded). A total of 284.6 million doses of COVID-19 vaccine were distributed to jurisdictions during the study period, of which 284.2 million doses were administered, and 0.4 million doses were wasted. The estimated cost per-dose-administered among the 38 jurisdictions that responded to study survey was $57.45 and imputed cost across all jurisdictions was $63.11. The findings on jurisdiction-level cost per-dose-administered and vaccination cost during the initial period of U.S. COVID-19 Vaccination Program, when demand exceeded supply, may be considered in future pandemic preparedness planning. |
| State-level household energy insecurity and diabetes prevalence among US adults, 2020
Saelee R , Bullard KM , Wittman JT , Alexander DS , Hudson D . Prev Chronic Dis 2024 21 E65 The objective of this study was to examine the state-level association between household energy insecurity and diabetes prevalence in 2020. We obtained 1) state-level data on household energy characteristics from the 2020 Residential Energy Consumption Survey and 2) diagnosed diabetes prevalence from the US Diabetes Surveillance System. We found states with a higher percentage of household energy insecurity had greater diabetes prevalence compared with states with lower percentages of energy insecurity. Interventions related to energy assistance may help reduce household energy insecurity, mitigate the risk of diabetes-related complications, and alleviate some of the burden of diabetes management during extreme temperatures. |
| Interventions to mitigate the impact of COVID-19 among people experiencing sheltered homelessness: Chicago, Illinois, March 1, 2020-May 11, 2023
Tietje L , Ghinai I , Cooper A , Tung EL , Borah B , Funk M , Ramachandran D , Gerber B , Man B , Singer R , Bell E , Moss A , Weidemiller A , Chaudhry M , Lendacki F , Bernard R , Gretsch S , English K , Huggett TD , Tornabene M , Cool C , Detmer WM , Schroeter MK , Mayer S , Davis E , Boegner J , Glenn EE , Phillips G 2nd , Falck S , Barranco L , Toews KA . Am J Public Health 2024 e1-e9 Objectives. To compare the incidence, case-hospitalization rates, and vaccination rates of COVID-19 between people experiencing sheltered homelessness (PESH) and the broader community in Chicago, Illinois, and describe the impact of a whole community approach to disease mitigation during the public health emergency. Methods. Incidence of COVID-19 among PESH was compared with community-wide incidence using case-based surveillance data from March 1, 2020, to May 11, 2023. Seven-day rolling means of COVID-19 incidence were assessed for the overall study period and for each of 6 distinct waves of COVID-19 transmission. Results. A total of 774 009 cases of COVID-19 were detected: 2579 among PESH and 771 430 in the broader community. Incidence and hospitalization rates per 100 000 in PESH were more than 5 times higher (99.84 vs 13.94 and 16.88 vs 2.14) than the community at large in wave 1 (March 1, 2020-October 3, 2020). This difference decreased through wave 3 (March 7, 2021-June 26, 2021), with PESH having a lower incidence rate per 100 000 than the wider community (8.02 vs 13.03). Incidence and hospitalization of PESH rose again to rates higher than the broader community in waves 4 through 6 but never returned to wave 1 levels. Throughout the study period, COVID-19 incidence among PESH was 2.88 times higher than that of the community (70.90 vs 24.65), and hospitalization was 4.56 times higher among PESH (7.51 vs 1.65). Conclusions. Our findings suggest that whole-community approaches can minimize disparities in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission between vulnerable populations and the broader community, and reinforce the benefits of a shared approach that include multiple partners when addressing public health emergencies in special populations. (Am J Public Health. Published online ahead of print August 28, 2024:e1-e9. https://doi.org/10.2105/AJPH.2024.307801). |
| JYNNEOS vaccine safety surveillance during the 2022 mpox outbreak using the Vaccine Adverse Event Reporting System (VAERS) and v-safe, United States, 2022-2023
Duffy J , Myers TR , Marquez P , Rouse D , Brown H , Zhang B , Shay DK , Moro PL . Sex Transm Dis 2024 51 (8) 509-515 BACKGROUND: In response to the 2022 mpox outbreak in the United States, people with higher potential for exposure to mpox were recommended to receive 2 doses of the JYNNEOS vaccine. Vaccine safety was monitored using 2 complementary systems. METHODS: The Vaccine Adverse Event Reporting System (VAERS) is a passive surveillance system that accepts reports of adverse events after vaccination. VAERS is capable of rapidly identifying rare adverse events and unusual reporting patterns. Medical records were requested and reviewed for adverse events of special interest, including myocarditis. Adverse event reporting rates were calculated as the number of verified adverse event cases divided by the number of JYNNEOS doses administered. V-safe for mpox was a voluntary smartphone-based vaccine safety surveillance system that sent enrolled persons text messages linked to health surveys asking about reactions and health impact events occurring after vaccination. RESULTS: There were 1,207,056 JYNNEOS doses administered in the United States. VAERS received 1927 reports for JYNNEOS. The myocarditis reporting rate per million doses was 2.69 after dose 1 and 8.64 after dose 2. V-safe had 213 participants complete at least one health survey. Rates of injection site and systemic reactions were similar in the first week after dose 1 and dose 2. CONCLUSIONS: JYNNEOS vaccine safety surveillance findings from VAERS and v-safe did not identify any unexpected safety concerns. The VAERS reporting rate for myocarditis was similar to previously published population background rates. |
| The partnership for international vaccine initiatives: The importance and opportunity to develop influenza vaccination programs in low- and middle-income countries
Bresee JS , Lafond KE . Vaccine 2024 126255 |
| Protection against influenza hospitalizations from enhanced influenza vaccines among older adults: A systematic review and network meta-analysis
Ferdinands JM , Blanton LH , Alyanak E , Chung JR , Trujillo L , Taliano J , Morgan RL , Fry AM , Grohskopf LA . J Am Geriatr Soc 2024 BACKGROUND: Influenza vaccines are available to help protect persons aged ≥65 years, who experience thousands of influenza hospitalizations annually. Because some influenza vaccines may work better than others, we sought to assess benefit of high-dose (HD), adjuvanted (ADJ), and recombinant (RIV) influenza vaccines ("enhanced influenza vaccines") compared with standard-dose unadjuvanted influenza vaccines (SD) and with one another for prevention of influenza-associated hospitalizations among persons aged ≥65 years. METHODS: We searched MEDLINE, Embase, CINAHL, Scopus, and Cochrane Library to identify randomized or observational studies published between January 1990 and October 2023 and reporting relative vaccine effectiveness (rVE) of HD, ADJ, or RIV for prevention of influenza-associated hospitalizations among adults aged ≥65 years. We extracted study data, assessed risk of bias, and conducted random-effects network meta-analysis and meta-regression. RESULTS: We identified 32 studies with 90 rVE estimates from five randomized and 27 observational studies (71,459,918 vaccinated participants). rVE estimates varied across studies and influenza seasons. Pooled rVE from randomized studies was 20% (95% CI -54 to 59) and 25% (95% CI -19 to 53) for ADJ and HD compared with SD, respectively; rVE was 6% (95% CI -109 to 58) for HD compared with ADJ; these differences were not statistically significant. In observational studies, ADJ, HD, and RIV conferred modestly increased protection compared with SD (rVE ranging from 10% to 19%), with no significant differences between HD, ADJ, and RIV. With enhanced vaccines combined, rVE versus SD was 18% (95% CI 3 to 32) from randomized and 11% (95% CI 8 to 14) from observational evidence. Meta-regression of observational studies suggested that those requiring laboratory confirmation of influenza reported greater benefit of enhanced vaccines. CONCLUSIONS: HD, ADJ, and RIV provided stronger protection than SD against influenza hospitalizations among older adults. No differences in benefit were observed in comparisons of enhanced influenza vaccines with one another. |
| Prevention and control of seasonal influenza with vaccines: Recommendations of the Advisory Committee on Immunization Practices - United States, 2024-25 Influenza Season
Grohskopf LA , Ferdinands JM , Blanton LH , Broder KR , Loehr J . MMWR Recomm Rep 2024 73 (5) 1-25 This report updates the 2023-24 recommendations of the Advisory Committee on Immunization Practices (ACIP) concerning the use of seasonal influenza vaccines in the United States (MMWR Recomm Rep 2022;72[No. RR-2]:1-24). Routine annual influenza vaccination is recommended for all persons aged ≥6 months who do not have contraindications. Trivalent inactivated influenza vaccines (IIV3s), trivalent recombinant influenza vaccine (RIV3), and trivalent live attenuated influenza vaccine (LAIV3) are expected to be available. All persons should receive an age-appropriate influenza vaccine (i.e., one approved for their age), with the exception that solid organ transplant recipients aged 18 through 64 years who are receiving immunosuppressive medication regimens may receive either high-dose inactivated influenza vaccine (HD-IIV3) or adjuvanted inactivated influenza vaccine (aIIV3) as acceptable options (without a preference over other age-appropriate IIV3s or RIV3). Except for vaccination for adults aged ≥65 years, ACIP makes no preferential recommendation for a specific vaccine when more than one licensed and recommended vaccine is available. ACIP recommends that adults aged ≥65 years preferentially receive any one of the following higher dose or adjuvanted influenza vaccines: trivalent high-dose inactivated influenza vaccine (HD-IIV3), trivalent recombinant influenza vaccine (RIV3), or trivalent adjuvanted inactivated influenza vaccine (aIIV3). If none of these three vaccines is available at an opportunity for vaccine administration, then any other age-appropriate influenza vaccine should be used.Primary updates to this report include the following two topics: the composition of 2024-25 U.S. seasonal influenza vaccines and updated recommendations for vaccination of adult solid organ transplant recipients. First, following a period of no confirmed detections of wild-type influenza B/Yamagata lineage viruses in global surveillance since March 2020, 2024-25 U.S. influenza vaccines will not include an influenza B/Yamagata component. All influenza vaccines available in the United States during the 2024-25 season will be trivalent vaccines containing hemagglutinin derived from 1) an influenza A/Victoria/4897/2022 (H1N1)pdm09-like virus (for egg-based vaccines) or an influenza A/Wisconsin/67/2022 (H1N1)pdm09-like virus (for cell culture-based and recombinant vaccines); 2) an influenza A/Thailand/8/2022 (H3N2)-like virus (for egg-based vaccines) or an influenza A/Massachusetts/18/2022 (H3N2)-like virus (for cell culture-based and recombinant vaccines); and 3) an influenza B/Austria/1359417/2021 (Victoria lineage)-like virus. Second, recommendations for vaccination of adult solid organ transplant recipients have been updated to include HD-IIV3 and aIIV3 as acceptable options for solid organ transplant recipients aged 18 through 64 years who are receiving immunosuppressive medication regimens (without a preference over other age-appropriate IIV3s or RIV3).This report focuses on recommendations for the use of vaccines for the prevention and control of seasonal influenza during the 2024-25 influenza season in the United States. A brief summary of the recommendations and a link to the most recent Background Document containing additional information are available at https://www.cdc.gov/acip-recs/hcp/vaccine-specific/flu.html?CDC_AAref_Val=https://www.cdc.gov/vaccines/hcp/acip-recs/vacc-specific/flu.html. These recommendations apply to U.S.-licensed influenza vaccines. Updates and other information are available from CDC's influenza website (https://www.cdc.gov/flu). Vaccination and health care providers should check this site periodically for additional information. |
| Genotypic analysis of RTS,S/AS01<inf>E</inf> malaria vaccine efficacy against parasite infection as a function of dosage regimen and baseline malaria infection status in children aged 5-17 months in Ghana and Kenya: a longitudinal phase 2b randomised controlled trial
Juraska M , Early AM , Li L , Schaffner SF , Lievens M , Khorgade A , Simpkins B , Hejazi NS , Benkeser D , Wang Q , Mercer LD , Adjei S , Agbenyega T , Anderson S , Ansong D , Bii DK , Buabeng PBY , English S , Fitzgerald N , Grimsby J , Kariuki SK , Otieno K , Roman F , Samuels AM , Westercamp N , Ockenhouse CF , Ofori-Anyinam O , Lee CK , MacInnis BL , Wirth DF , Gilbert PB , Neafsey DE . The Lancet Infectious Diseases 2024 24(9) 1025-1036 Background: The first licensed malaria vaccine, RTS,S/AS01<inf>E</inf>, confers moderate protection against symptomatic disease. Because many malaria infections are asymptomatic, we conducted a large-scale longitudinal parasite genotyping study of samples from a clinical trial exploring how vaccine dosing regimen affects vaccine efficacy. Method(s): Between Sept 28, 2017, and Sept 25, 2018, 1500 children aged 5-17 months were randomly assigned (1:1:1:1:1) to receive four different RTS,S/AS01<inf>E</inf> regimens or a rabies control vaccine in a phase 2b open-label clinical trial in Ghana and Kenya. Participants in the four RTS,S groups received two full doses at month 0 and month 1 and either full doses at month 2 and month 20 (group R012-20); full doses at month 2, month 14, month 26, and month 38 (group R012-14); fractional doses at month 2, month 14, month 26, and month 38 (group Fx012-14; early fourth dose); or fractional doses at month 7, month 20, and month 32 (group Fx017-20; delayed third dose). We evaluated the time to the first new genotypically detected infection and the total number of new infections during two follow-up periods (12 months and 20 months) in more than 36 000 dried blood spot specimens from 1500 participants. To study vaccine effects on time to the first new infection, we defined vaccine efficacy as one minus the hazard ratio (HR; RTS,S vs control) of the first new infection. We performed a post-hoc analysis of vaccine efficacy based on malaria infection status at first vaccination and force of infection by month 2. This trial (MAL-095) is registered with ClinicalTrials.gov, NCT03281291. Finding(s): We observed significant and similar vaccine efficacy (25-43%; 95% CI union 9-53) against first new infection for all four RTS,S/AS01<inf>E</inf> regimens across both follow-up periods (12 months and 20 months). Each RTS,S/AS01<inf>E</inf> regimen significantly reduced the mean number of new infections in the 20-month follow-up period by 1.1-1.6 infections (95% CI union 0.6-2.1). Vaccine efficacy against first new infection was significantly higher in participants who were infected with malaria (68%; 95% CI 50-80) than in those who were uninfected (37%; 23-48) at the first vaccination (p=0.0053). Interpretation(s): All tested dosing regimens blocked some infections to a similar degree. Improved vaccine efficacy in participants infected during vaccination could suggest new strategies for highly efficacious malaria vaccine development and implementation. Funding(s): GlaxoSmithKline Biologicals SA, PATH, Bill & Melinda Gates Foundation, and the German Federal Ministry of Education and Research. Copyright © 2024 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license |
| Impact of vaccination against Japanese encephalitis in endemic countries
Letson GW , Marfin AA , Mooney J , Minh HV , Hills SL . PLoS Negl Trop Dis 2024 18 (9) e0012390 BACKGROUND: Japanese encephalitis (JE) virus is the leading cause of vaccine-preventable encephalitis and a significant cause of disability in Asia and the western Pacific. Many countries have introduced JE vaccination programs, including several low resource countries following WHO's prioritization of JE vaccination in 2006. We sought to characterize the public health impact of JE vaccination programs. METHODOLOGY/PRINCIPAL FINDINGS: JE case data and vaccination coverage rates, were requested from country health officials in 23 JE endemic countries and Chinese Taipei. Additional data were extracted from meeting presentations and published literature. JE incidence was compared before and after vaccination using a minimum three year period pre and post program introduction or expansion. Data suitable for analysis were available for 13 JE-endemic countries and Chinese Taipei, for either all age groups or for children aged under 15 years only. Five countries and Chinese Taipei introduced vaccine prior to 2006 and the all-age JE incidence was reduced by 73-100% in about 5-20 years following introduction. Six countries have introduced JE vaccine since 2006, and JE incidence in children aged younger than 15 years has been reduced by 14-79% as of 2015-2021. JE-specific data were unavailable before introduction in Thailand and Vietnam, but vaccination programs reduced acute encephalitis incidence by 80% and 74%, respectively. Even in the programs with greatest impact, it took several years to achieve their results. CONCLUSIONS/SIGNIFICANCE: JE vaccination has greatly reduced JE in 13 JE-endemic countries and Chinese Taipei. Highest impact has been observed in countries that introduced prior to 2006, but it often took roughly two decades and substantial resources to achieve that level of success. For greatest possible impact, more recently introducing countries and funding agencies should commit to continuous improvements in delivery systems to sustain coverage after initial vaccine introduction. |
| Tracking measles and rubella elimination progress-world health organization African region, 2022-2023
Masresha BG , Wiysonge CS , Katsande R , O'Connor PM , Lebo E , Perry RT . Vaccines (Basel) 2024 12 (8) Measles or rubella elimination is verified when endemic transmission of the corresponding virus has been absent for over 36 months in a defined area, in the presence of a well-performing surveillance system. This report updates the progress by 47 countries in the WHO African Region towards the goal of attaining verification of measles and rubella elimination in at least 80% of the countries of the region by 2030. We reviewed the WHO-UNICEF vaccination coverage estimates for the first and second doses of measles- and measles-rubella-containing vaccines, as well as the available coverage data for measles supplementary immunization activities, during 2022-2023. We also reviewed the measles-surveillance performance and analyzed the epidemiological trends of measles and rubella as reported in the case-based surveillance database. The WHO-UNICEF estimates of first measles vaccine dose (MCV1) and second measles vaccine dose (MCV2) coverage for the African Region for 2022 were 69% and 45%, respectively. Rubella-containing vaccines have been introduced in the routine immunization program in 32 of 47 (68%) countries as of the end of 2022, with no introductions during 2023. In 2022 and 2023, a total of 144,767,764 children were vaccinated in the region with measles or MR vaccines in 24 countries through 32 mass vaccination campaigns. The administrative coverage target of 95% was reached in only 15 (49%) of the 32 vaccination campaigns. In 2023, a total of 125,957 suspected cases of measles were reported through the case-based surveillance system, and 73,625 cases (58%) were confirmed to be measles, either by laboratory testing, by epidemiological linkage, or based on clinical compatibility. A total of 4805 confirmed rubella cases were reported, though this total represents substantial under-ascertainment. The regional incidence of measles was 60.3 cases per million population. Twenty-six countries (55%) met the targets for the two principal surveillance system performance-monitoring indicators. No country in the region has attained the verification of measles or rubella elimination as of the end of 2023. Addressing systemic problems with routine immunization and using tailored approaches to reach unvaccinated children can contribute to progress towards measles and rubella elimination. In addition, periodic and timely high-quality preventive SIAs remain a critical programmatic strategy to reach unvaccinated children. |
| Healthcare personnel acceptance and recommendations for influenza vaccine in twelve low- and middle-income countries: A pooled analysis from 2018 to 2020
McCarron M , Marcenac P , Yau TS , Lafond KE , Ebama MS , Duca LM , Sahakyan G , Bino S , Coulibaly D , Emukule G , Khanthamaly V , Zaraket H , Cherkaoui I , Otorbaeva D , Stravidis K , Safarov A , Bettaieb J , Igboh LS , Azziz-Baumgartner E , Vanyan A , Manukyan A , Nelaj E , Preza I , Douba A , N'Gattia A , Tengbriacheu C , Pathammavong C , Alame M , Alj L , Ben Salah A , Lambach P , Bresee JS . Vaccine 2024 125670 BACKGROUND: Although healthcare personnel (HCP) are targeted for influenza vaccination they typically underutilize vaccines especially in low- and middle-income countries. We explored knowledge, attitudes, and practices of HCP about seasonal influenza vaccines (SIV) to identify factors associated with and modifiable barriers to SIV uptake. METHODS: We pooled individual-level data from cross-sectional surveys about SIV conducted among health workers in 12 low- and middle- income countries during 2018-2020 (i.e., Albania, Armenia, Cote d'Ivoire, Kenya, Kyrgyzstan, Lao PDR, Lebanon, Morocco, North Macedonia, Tunisia, Tajikistan, and Uganda). Eleven countries used a standard protocol and questionnaire based on the Health Belief Model to measure perceptions of susceptibility and severity of influenza disease, benefits of, barriers to, and motivators for vaccination. We analyzed attitudes and perceptions among HCP, including acceptance of vaccine for themselves and willingness to recommend vaccines to patients, grouped by the presence/absence of a national influenza vaccination program. Models were adjusted for geographic region. RESULTS: Our analysis included 10,281 HCP from 12 countries representing four of the six World Health Organization regions: African, Eastern Mediterranean, European, and Western Pacific. The sample was distributed across low income (LIC) (3,183, 31 %), lower-middle (LMIC) (4,744, 46 %), and upper-middle income (UMIC) (2,354, 23 %) countries. Half (50 %) of the countries included in the analysis reported SIV use among HCP in both the year of and the year preceding data collection while the remainder had no influenza vaccination program for HCP. Seventy-four percent (6,341) of HCP reported that they would be willing to be vaccinated if the vaccine was provided free of charge. HCP in LICs were willing to pay prices for SIV representing a higher percentage of their country's annual health expenditure per capita (6.26 % [interquartile range, IQR: 3.13-12.52]) compared to HCP in LMICs and UMICs. HCP in countries with no SIV program were also willing to pay a higher percentage for SIV (5.01 % [IQR: 2.24-8.34]) compared to HCP in countries with SIV programs.. Most (85 %) HCP in our analysis would recommend vaccines to their patients, and those who would accept vaccines for themselves were 3 times more likely to recommend vaccines to their patients (OR 3.1 [95 % CI 1·8, 5·2]). CONCLUSION: Increasing uptake of SIV among HCP can amplify positive impacts of vaccination by increasing the likelihood that HCP recommend vaccines to their patients. Successful strategies to achieve increased uptake of vaccines include clear guidance from health authorities, interventions based on behavior change models, and access to vaccine free-of-charge. |
| Salivary immune responses after COVID-19 vaccination
Nguyen K , Relja B , Epperson M , Park SH , Thornburg NJ , Costantini VP , Vinjé J . PLoS One 2024 19 (9) e0307936 mRNA-based COVID-19 vaccines have played a critical role in reducing severe outcomes of COVID-19. Humoral immune responses against SARS-CoV-2 after vaccination have been extensively studied in blood; however, limited information is available on the presence and duration of SARS-CoV-2 specific antibodies in saliva and other mucosal fluids. Saliva offers a non-invasive sampling method that may also provide a better understanding of mucosal immunity at sites where the virus enters the body. Our objective was to evaluate the salivary immune response after vaccination with the COVID-19 Moderna mRNA-1273 vaccine. Two hundred three staff members of the U.S. Centers for Disease Control and Prevention were enrolled prior to receiving their first dose of the mRNA-1273 vaccine. Participants were asked to self-collect 6 saliva specimens at days 0 (prior to first dose), 14, 28 (prior to second dose), 42, and 56 using a SalivaBio saliva collection device. Saliva specimens were tested for anti-spike protein SARS-CoV-2 specific IgA and IgG enzyme immunoassays. Overall, SARS-CoV-2-specific salivary IgA titers peaked 2 weeks after each vaccine dose, followed by a sharp decrease during the following weeks. In contrast to IgA titers, IgG antibody titers increased substantially 2 weeks after the first vaccine dose, peaked 2 weeks after the second dose and persisted at an elevated level until at least 8 weeks after the first vaccine dose. Additionally, no significant differences in IgA/IgG titers were observed based on age, sex, or race/ethnicity. All participants mounted salivary IgA and IgG immune responses against SARS-CoV-2 after receiving the mRNA-1273 COVID-19 vaccine. Because of the limited follow-up time for this study, more data are needed to assess the antibody levels beyond 2 months after the first dose. Our results confirm the potential utility of saliva in assessing immune responses elicited by immunization and possibly by infection. |
| Prediction of post-PCV13 pneumococcal evolution using invasive disease data enhanced by inverse-invasiveness weighting
Qiu X , McGee L , Hammitt L , Grant LR , O'Brien KL , Hanage WP , Lipsitch M . mBio 2024 e0335523
After introducing pneumococcal conjugate vaccines (PCVs), serotype replacement occurred in Streptococcus pneumoniae. Predicting which pneumococcal strains will become common in carriage after vaccination can enhance vaccine design, public health interventions, and understanding of pneumococcal evolution. Invasive pneumococcal isolates were collected during 1998-2018 by the Active Bacterial Core surveillance (ABCs). Carriage data from Massachusetts (MA) and Southwest United States were used to calculate weights. Using pre-vaccine data, serotype-specific inverse-invasiveness weights were defined as the ratio of the proportion of the serotype in carriage to the proportion in invasive data. Genomic data were processed under bioinformatic pipelines to define genetically similar sequence clusters (i.e., strains), and accessory genes (COGs) present in 5-95% of isolates. Weights were applied to adjust observed strain proportions and COG frequencies. The negative frequency-dependent selection (NFDS) model predicted strain proportions by calculating the post-vaccine strain composition in the weighted invasive disease population that would best match pre-vaccine COG frequencies. Inverse-invasiveness weighting increased the correlation of COG frequencies between invasive and carriage data in linear or logit scale for pre-vaccine, post-PCV7, and post-PCV13; and between different epochs in the invasive data. Weighting the invasive data significantly improved the NFDS model's accuracy in predicting strain proportions in the carriage population in the post-PCV13 epoch, with the adjusted R(2) increasing from 0.254 before weighting to 0.545 after weighting. The weighting system adjusted invasive disease data to better represent the pneumococcal carriage population, allowing the NFDS mechanism to predict strain proportions in carriage in the post-PCV13 epoch. Our methods enrich the value of genomic sequences from invasive disease surveillance.IMPORTANCEStreptococcus pneumoniae, a common colonizer in the human nasopharynx, can cause invasive diseases including pneumonia, bacteremia, and meningitis mostly in children under 5 years or older adults. The PCV7 was introduced in 2000 in the United States within the pediatric population to prevent disease and reduce deaths, followed by PCV13 in 2010, PCV15 in 2022, and PCV20 in 2023. After the removal of vaccine serotypes, the prevalence of carriage remained stable as the vacated pediatric ecological niche was filled with certain non-vaccine serotypes. Predicting which pneumococcal clones, and which serotypes, will be most successful in colonization after vaccination can enhance vaccine design and public health interventions, while also improving our understanding of pneumococcal evolution. While carriage data, which are collected from the pneumococcal population that is competing to colonize and transmit, are most directly relevant to evolutionary studies, invasive disease data are often more plentiful. Previously, evolutionary models based on negative frequency-dependent selection (NFDS) on the accessory genome were shown to predict which non-vaccine strains and serotypes were most successful in colonization following the introduction of PCV7. Here, we show that an inverse-invasiveness weighting system applied to invasive disease surveillance data allows the NFDS model to predict strain proportions in the projected carriage population in the post-PCV13/pre-PCV15 and pre-PCV20 epoch. The significance of our research lies in using a sample of invasive disease surveillance data to extend the use of NFDS as an evolutionary mechanism to predict post-PCV13 population dynamics. This has shown that we can correct for biased sampling that arises from differences in virulence and can enrich the value of genomic data from disease surveillance and advance our understanding of how NFDS impacts carriage population dynamics after both PCV7 and PCV13 vaccination. |
| Reduced risk of SARS-CoV-2 infection among household contacts with recent vaccination and past COVID-19 infection: Results from two multi-site case-ascertained household transmission studies
Rolfes MA , Talbot HK , Morrissey KG , Stockwell MS , Maldonado Y , McLean HQ , Lutrick K , Bowman NM , Rao S , Izurieta HS , Zhu Y , Chappell J , Battan-Wraith S , Merrill LS , McClaren S , Sano E , Petrie JG , Biddle J , Johnson S , Salvatore P , Smith-Jeffcoat SE , Asturias EJ , Lin JT , Ellingson KD , Belongia EA , Olivo V , Mellis AM , Grijalva CG . Am J Epidemiol 2024 Households are a primary setting for transmission of SARS-CoV-2. We examined the role of prior SARS-CoV-2 immunity on the risk of infection in household close contacts. Households in the United States with an individual who tested positive for SARS-CoV-2 during September 2021-May 2023 were enrolled if the index case's illness began ≤6 days prior. Household members had daily self-collected nasal swabs tested by RT-PCR for SARS-CoV-2. The effects of prior SARS-CoV-2 immunity (vaccination, prior infection, or hybrid immunity) on SARS-CoV-2 infection risk among household contacts were assessed by robust, clustered multivariable Poisson regression. Of 1,532 contacts (905 households), 8% had immunity from prior infection alone, 51% from vaccination alone, 29% hybrid immunity, and 11% had no prior immunity. Sixty percent of contacts tested SARS-CoV-2-positive during follow-up. The adjusted risk of SARS-CoV-2 infection was lowest among contacts with vaccination and prior infection (aRR: 0.81, 95% CI: 0.70, 0.93, compared with contacts with no prior immunity) and was lowest when the last immunizing event occurred ≤6 months before COVID-19 affected the household (aRR: 0.69, 95% CI: 0.57, 0.83). In high-transmission settings like households, immunity from COVID-19 vaccination and prior infection was synergistic in protecting household contacts from SARS-CoV-2 infection. |
| RSV vaccine effectiveness against hospitalization among US adults 60 years and older
Surie D , Self WH , Zhu Y , Yuengling KA , Johnson CA , Grijalva CG , Dawood FS . Jama 2024 This study evaluates the effectiveness of the respiratory syncytial virus vaccine against hospitalization for acute respiratory illness among US adults aged 60 years and older. | eng |
| Association between state minimum wage and firearm suicides in the USA, 2000-2020
Merrill-Francis M , Dunphy C , Lennon N , Chen MS , Grady C , Miller GF , Girod C , McCourt AD . Inj Prev 2024 BACKGROUND: Firearm suicides constitute a major public health issue. Policies that enhance economic security and decrease community-level poverty may be effective strategies for reducing risk of firearm suicide. This study examined the association between state minimum wage and firearm suicide. METHODS: State minimum wage, obtained from Temple's Law Atlas and augmented by legal research, was conceptualised using the modified Kaitz Index and a continuous variable centred on the federal minimum wage. State-level suicide counts were obtained from 2000 to 2020 multiple-cause-of-death mortality data from the National Vital Statistics System. Log-linear regressions were conducted to model the associations between state minimum wage and firearm suicides, stratifying by demographic groups. Analyses were conducted in 2023. RESULTS: A one percentage point increase in a state's modified Kaitz Index was associated with a 0.3% (95% CI -0.6% to -0.0%) decrease in firearm suicides within a state. A US$1.00 increase in a state's minimum wage above the federal minimum wage was associated with a 1.4% (95% CI -2.1% to -0.6%) decrease in firearm suicides. When stratified by quartile of firearm ownership, the modified Kaitz Index was associated with decreases in firearm suicides most consistently in the two lowest quartiles. CONCLUSION: Increasing a state's minimum wage may be a policy option to consider as part of a comprehensive approach to reducing firearm suicides. These findings expand the evidence base for how economic policies may be leveraged to reduce firearm suicides. |
| Notes from the Field: Intimate Partner Homicide Among Women - United States, 2018-2021
Rowh A , Jack S . MMWR Morb Mortal Wkly Rep 2024 73 (34) 754-756 |
| Challenges and approaches to establishing multi-pathogen serosurveillance: Findings from the 2023 serosurveillance summit
Carcelen AC , Kong AC , Takahashi S , Hegde S , Jaenisch T , Chu M , Rochford R , Kostandova N , Gurley ES , Wesolowski A , Azman AS , van der Klis FRM , den Hartog G , Drakeley C , Heaney C , Winter AK , Salje H , Rodriguez-Barraquer I , Leung DT , Njenga SM , Kagucia EW , Jambo KC , Wolter N , Charles RC , Saboyá-Díaz MI , Martin DL , Moss WJ . Am J Trop Med Hyg 2024
Multiplex-based serological surveillance is a valuable but underutilized tool to understand gaps in population-level exposure, susceptibility, and immunity to infectious diseases. Assays for which blood samples can be tested for antibodies against several pathogens simultaneously, such as multiplex bead immunoassays, can more efficiently integrate public health surveillance in low- and middle-income countries. On March 7-8, 2023 a group of experts representing research institutions, multilateral organizations, private industry, and country partners met to discuss experiences, identify challenges and solutions, and create a community of practice for integrated, multi-pathogen serosurveillance using multiplex bead assay technologies. Participants were divided into six working groups: 1) supply chain; 2) laboratory assays; 3) seroepidemiology; 4) data analytics; 5) sustainable implementation; and 6) use case scenarios. These working groups discussed experiences, challenges, solutions, and research needs to facilitate integrated, multi-pathogen serosurveillance for public health. Several solutions were proposed to address challenges that cut across working groups. |
| Data alchemy, from lab to insight: Transforming in vivo experiments into data science gold
Kieran TJ , Maines TR , Belser JA . PLoS Pathog 2024 20 (8) e1012460
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| Early biological markers of post-acute sequelae of SARS-CoV-2 infection
Lu S , Peluso MJ , Glidden DV , Davidson MC , Lugtu K , Pineda-Ramirez J , Tassetto M , Garcia-Knight M , Zhang A , Goldberg SA , Chen JY , Fortes-Cobby M , Park S , Martinez A , So M , Donovan A , Viswanathan B , Hoh R , Donohue K , McIlwain DR , Gaudiliere B , Anglin K , Yee BC , Chenna A , Winslow JW , Petropoulos CJ , Deeks SG , Briggs-Hagen M , Andino R , Midgley CM , Martin JN , Saydah S , Kelly JD . Nat Commun 2024 15 (1) 7466
To understand the roles of acute-phase viral dynamics and host immune responses in post-acute sequelae of SARS-CoV-2 infection (PASC), we enrolled 136 participants within 5 days of their first positive SARS-CoV-2 real-time PCR test. Participants self-collected up to 21 nasal specimens within the first 28 days post-symptom onset; interviewer-administered questionnaires and blood samples were collected at enrollment, days 9, 14, 21, 28, and month 4 and 8 post-symptom onset. Defining PASC as the presence of any COVID-associated symptom at their 4-month visit, we compared viral markers (quantity and duration of nasal viral RNA load, infectious viral load, and plasma N-antigen level) and host immune markers (IL-6, IL-10, TNF-α, IFN-α, IFN-γ, MCP, IP-10, and Spike IgG) over the acute period. Compared to those who fully recovered, those reporting PASC demonstrated significantly higher maximum levels of SARS-CoV-2 RNA and N-antigen, burden of RNA and infectious viral shedding, and lower Spike-specific IgG levels within 9 days post-illness onset. No significant differences were identified among a panel of host immune markers. Our results suggest early viral dynamics and the associated host immune responses play a role in the pathogenesis of PASC, highlighting the importance of understanding early biological markers in the natural history of PASC. |
| Evaluating analytic models for individually randomized group treatment trials with complex clustering in nested and crossed designs
Moyer JC , Li F , Cook AJ , Heagerty PJ , Pals SL , Turner EL , Wang R , Zhou Y , Yu Q , Wang X , Murray DM . Stat Med 2024
Many individually randomized group treatment (IRGT) trials randomly assign individuals to study arms but deliver treatments via shared agents, such as therapists, surgeons, or trainers. Post-randomization interactions induce correlations in outcome measures between participants sharing the same agent. Agents can be nested in or crossed with trial arm, and participants may interact with a single agent or with multiple agents. These complications have led to ambiguity in choice of models but there have been no systematic efforts to identify appropriate analytic models for these study designs. To address this gap, we undertook a simulation study to examine the performance of candidate analytic models in the presence of complex clustering arising from multiple membership, single membership, and single agent settings, in both nested and crossed designs and for a continuous outcome. With nested designs, substantial type I error rate inflation was observed when analytic models did not account for multiple membership and when analytic model weights characterizing the association with multiple agents did not match the data generating mechanism. Conversely, analytic models for crossed designs generally maintained nominal type I error rates unless there was notable imbalance in the number of participants that interact with each agent. |
| Use of measles and rubella rapid diagnostic tests to improve case detection and targeting of vaccinations
Rachlin A , Hampton LM , Rota PA , Mulders MN , Papania M , Goodson JL , Krause LK , Hanson M , Osborn J , Kelly-Cirino C , Evans B , Sinha A , Warrener L , Featherstone D , Brown D . Vaccines (Basel) 2024 12 (8) Efforts to control and eliminate measles and rubella are aided by high-quality surveillance data-supported by laboratory confirmation-to guide decision-making on routine immunization strategies and locations for conducting preventive supplementary immunization activities (SIAs) and outbreak response. Important developments in rapid diagnostic tests (RDTs) for measles and rubella present new opportunities for the global measles and rubella surveillance program to greatly improve the ability to rapidly detect and respond to outbreaks. Here, we review the status of RDTs for measles and rubella Immunoglobulin M (IgM) testing, as well as ongoing questions and challenges regarding the operational use and deployment of RDTs as part of global measles and rubella surveillance. Efforts to develop IgM RDTs that can be produced at scale are underway. Once validated RDTs are available, clear information on the benefits, challenges, and costs of their implementation will be critical for shaping deployment guidance and informing country plans for sustainably deploying such tests. The wide availability of RDTs could provide new programmatic options for measles and rubella elimination efforts, potentially enabling improvements and flexibility for testing, surveillance, and vaccination. |
| Transcriptional and morphological responses following distinct muscle contraction protocols for Snell dwarf (Pit1(dw/dw)) mice
Rader EP , McKinstry KA , Baker BA . Physiol Rep 2024 12 (17) e70027
The Snell dwarf mouse (Pit1(dw/dw)), an animal model of congenital combined pituitary hormone deficiency, displays skeletal muscle weakness. While enhanced responsivity to repeated exposures of muscle contractions have been documented for Snell dwarf mice, the response following single exposure to distinct contraction protocols remained uncharacterized. The purpose of this study was to investigate the muscle recovery of Snell dwarf and control littermate mice following a single exposure to two separate protocols-an intermittent slow velocity (30°/s) contraction protocol or a continuous rapid velocity (500°/s) contraction protocol. Following both protocols for control mice, torque values were 30% and 80% of pre-protocol values at 5 min and 3 days, respectively. At 10 days, performance returned to baseline for the 30°/s protocol and were depressed for the 500°/s protocol. For Snell dwarf mice following both protocols, torques were depressed to 5% of pre-protocol values at 5 min and returned to baseline by 3 days. Recovery following the 30°/s protocol for control mice and both protocols for Snell dwarf mice coincided with increased transcriptional output, upregulation of cytokine-mediated signaling genes, and a distribution shift to smaller muscle fibers with reduced area per nucleus. These features represent efficacious remodeling ubiquitous across distinct contraction paradigms in the context of the Pit1 mutation. |
| The global measles and rubella laboratory network supports high-quality surveillance
Rota PA , Evans R , Ben Mamou MC , Rey-Benito G , Sangal L , Dosseh A , Ghoniem A , Byabamazima CR , Demanou M , Anderson R , Kim G , Bankamp B , Beard RS , Crooke SN , Ramachandran S , Penedos A , Stambos V , Nicholson S , Featherstone D , Mulders MN . Vaccines (Basel) 2024 12 (8)
With 762 laboratories, the Global Measles and Rubella Laboratory Network (GMRLN) is the largest laboratory network coordinated by the World Health Organization (WHO). Like the Global Polio Laboratory Network, the GMRLN has multiple tiers, including global specialized laboratories, regional reference laboratories, national laboratories, and, in some countries, subnational laboratories. Regional networks are supervised by regional laboratory coordinators reporting to a global coordinator at WHO headquarters. Laboratories in the GMRLN have strong links to national disease control and vaccination programs. The GMRLN's goal is to support member states in obtaining timely, complete, and reliable laboratory-based surveillance data for measles and rubella as part of the strategy for achieving measles and rubella elimination. Surveillance data are reported to the national program and are included in annual reports on the status of measles and rubella elimination to national verification committees for review by regional verification commissions. Quality within the GMRLN is ensured by monitoring performance through external quality assurance programs, confirmatory and quality control testing, accreditation, and coordination of corrective action and training where needed. The overall performance of the laboratories has remained high over the years despite many challenges, particularly the COVID-19 pandemic. The GMRLN is well-positioned to support high-quality laboratory-based surveillance for measles and rubella and to transition to supporting laboratory testing for other pathogens, including vaccine-preventable diseases. |
| Administratively reported fetal alcohol spectrum disorders in commercially- and Medicaid-insured samples of children in the United States, 2015 - 2021
Deputy NP , Grosse SD , Bertrand J , Danielson ML , George NM , Kim SY . Drug Alcohol Depend 2024 263 112420 BACKGROUND: Fetal alcohol spectrum disorders (FASDs) are lifelong conditions that can occur in a person with prenatal alcohol exposure. Although studies using intensive, in-person assessments of children in selected communities have found higher estimates of children with FASDs than studies of healthcare claims data, claims-based studies provide more current information about individuals with recognized FASDs from diverse populations. We estimated the proportion of children with administratively reported FASDs in two large healthcare claims databases. METHODS: We analyzed Merative™ MarketScan® commercial and Medicaid claims databases, that include nationwide data from employer-sponsored health plans and from Medicaid programs in 8-10 states, respectively. For each database, we estimated the proportion of children aged 0-17 years with administratively reported FASDs, identified by one inpatient or two outpatient codes for prenatal alcohol exposure or fetal alcohol syndrome during the entire seven-year period from 2015 to 2021 and during each year. RESULTS: During 2015-2021, 1.2 per 10,000 commercially-insured and 6.1 per 10,000 Medicaid-insured children had an administratively reported FASD; estimates varied by sex, geography, and other available demographics. Among commercially-insured children, 0.5 per 10,000 in 2015 and 0.6 per 10,000 children in 2021 had an administratively reported FASD; among Medicaid-insured, 1.2 per 10,000 in 2015 and 2.1 per 10,000 children in 2021 had an administratively reported FASD. CONCLUSIONS: Although an underestimate of the true population of children with FASDs, patterns in administratively reported FASDs by demographics were consistent with previous studies. Healthcare claims studies can provide timely, ongoing information about children with recognized FASDs to complement in-persons studies. |
| Evaluation of interventions to improve timely hepatitis B birth dose vaccination among infants and maternal tetanus vaccination among pregnant women in Nigeria
Kanu FA , Freeland C , Nwokoro UU , Mohammed Y , Ikwe H , Uba B , Sandhu H , An Q , Asekun A , Akataobi C , Adewole A , Fadahunsi R , Wisdom M , Akudo OL , Ugbenyo G , Simple E , Waziri N , Vasumu JJ , Bahuli AU , Bashir SS , Isa A , Ugwu G , Obi EI , Binta H , Bassey BO , Shuaib F , Bolu O , Tohme RA . Vaccine 2024 42 (24) 126222 BACKGROUND: Nigeria has the largest number of children infected with hepatitis B virus (HBV) globally and has not yet achieved maternal and neonatal tetanus elimination. In Nigeria, maternal tetanus diphtheria (Td) vaccination is part of antenatal care and hepatitis B birth dose (HepB-BD) vaccination for newborns has been offered since 2004. We implemented interventions targeting healthcare workers (HCWs), community volunteers, and pregnant women attending antenatal care with the goal of improving timely (within 24 hours) HepB-BD vaccination among newborns and Td vaccination coverage among pregnant women. METHODS: We selected 80 public health facilities in Adamawa and Enugu states, with half intervention facilities and half control. Interventions included HCW and community volunteer trainings, engagement of pregnant women, and supportive supervision at facilities. Timely HepB-BD coverage and at least two doses of Td (Td2+) coverage were assessed at baseline before project implementation (January-June 2021) and at endline, one year after implementation (January-June 2022). We held focus group discussions at intervention facilities to discuss intervention strengths, challenges, and improvement opportunities. RESULTS: Compared to baseline, endline median vaccination coverage increased for timely HepB-BD from 2.6% to 61.8% and for Td2+ from 20.4% to 26.9% in intervention facilities (p < 0.05). In comparison, at endline in control facilities median vaccination coverage for timely HepB-BD was 7.9% (p < 0.0001) and Td2+ coverage was 22.2% (p = 0.14). Focus group discussions revealed that HCWs felt empowered to administer vaccination due to increased knowledge on hepatitis B and tetanus, pregnant women had increased knowledge that led to improved health seeking behaviors including Td vaccination, and transportation support was needed to reach those in far communities. CONCLUSION: Targeted interventions significantly increased timely HepB-BD and Td vaccination rates in intervention facilities. Continued support of these successful interventions could help Nigeria reach hepatitis B and maternal and neonatal tetanus elimination goals. |
| Updated national and state-specific prevalence of congenital cytomegalovirus infection, United States, 2018-2022
Lutz CS , Schleiss MR , Fowler KB , Lanzieri TM . J Public Health Manag Pract 2024
CONTEXT: Congenital cytomegalovirus (cCMV) infection is the most common infectious cause of birth defects and the leading non-genetic cause of sensorineural hearing loss in the United States. Prior national cCMV infection prevalence estimates were based on one multi-site screening study conducted between 2007 and 2012 and were not adjusted for sociodemographic characteristics, such as maternal race and ethnicity or age. OBJECTIVE: This study sought to estimate national and state-specific prevalence of cCMV infection in the United States, adjusted for maternal race and ethnicity and maternal age group, by pooling estimates from published studies. DESIGN: We searched PubMed for U.S. cCMV newborn screening studies conducted between 2003 and 2023. From included studies, we abstracted maternal race and ethnicity- and age group-stratified cCMV prevalence to estimate strata-specific pooled prevalence. We obtained strata-specific weights from live birth data. MAIN OUTCOME MEASURE: Estimated adjusted national and state-specific prevalence estimates from 2018 to 2022. RESULTS: Four studies (conducted 2004-2005, 2008, 2007-2012, and 2016-2021) were included for data abstraction. Overall, infants born to non-Hispanic Black (9.3 [8.2-10.5] per 1000) or non-Hispanic American Indian and Alaska Native (8.5 [2.1-33.2] per 1000) mothers had the highest cCMV prevalence. The estimated race and ethnicity-adjusted prevalence was 4.6-4.7 per 1000 live births nationally and ranged from 3.9 to 6.5 per 1000 across states from 2018 to 2022. Southern states and Alaska consistently had the highest cCMV prevalence. The estimated maternal age group-adjusted prevalence was 4.3-4.4 per 1000 live births nationally and ranged from 3.8 to 5.1 per 1000 across states from 2018 to 2022. CONCLUSIONS: States with larger proportions of racial and ethnic minorities had higher estimated prevalence of cCMV infection compared to states with larger proportions of White persons. These estimates may be useful for informing cCMV surveillance at the jurisdiction level and developing tailored, culturally relevant education and prevention strategies for persons at higher risk. |
| Designing an experimental platform to assess ergonomic factors and distraction index in law enforcement vehicles during mission-based routes
Cheng MH , Guan J , Dave HK , White RS , Whisler RL , Zwiener JV , Camargo HE , Current RS . Machines 2024 12 (8) Mission-based routes for various occupations play a crucial role in occupational driver safety, with accident causes varying according to specific mission requirements. This study focuses on the development of a system to address driver distraction among law enforcement officers by optimizing the Driver–Vehicle Interface (DVI). Poorly designed DVIs in law enforcement vehicles, often fitted with aftermarket police equipment, can lead to perceptual-motor problems such as obstructed vision, difficulty reaching controls, and operational errors, resulting in driver distraction. To mitigate these issues, we developed a driving simulation platform specifically for law enforcement vehicles. The development process involved the selection and placement of sensors to monitor driver behavior and interaction with equipment. Key criteria for sensor selection included accuracy, reliability, and the ability to integrate seamlessly with existing vehicle systems. Sensor positions were strategically located based on previous ergonomic studies and digital human modeling to ensure comprehensive monitoring without obstructing the driver’s field of view or access to controls. Our system incorporates sensors positioned on the dashboard, steering wheel, and critical control interfaces, providing real-time data on driver interactions with the vehicle equipment. A supervised machine learning-based prediction model was devised to evaluate the driver’s level of distraction. The configured placement and integration of sensors should be further studied to ensure the updated DVI reduces driver distraction and supports safer mission-based driving operations. © 2024 by the authors. |
| Managing workplace AI risks and the future of work
Howard J , Schulte P . Am J Ind Med 2024
Artificial intelligence (AI)-the field of computer science that designs machines to perform tasks that typically require human intelligence-has seen rapid advances in the development of foundation systems such as large language models. In the workplace, the adoption of AI technologies can result in a broad range of hazards and risks to workers, as illustrated by the recent growth in industrial robotics and algorithmic management. Sources of risk from deployment of AI technologies across society and in the workplace have led to numerous government and private sector guidelines that propose principles governing the design and use of trustworthy and ethical AI. As AI capabilities become integrated in devices, machines, and systems across industry sectors, employers, workers, and occupational safety and health practitioners will be challenged to manage AI risks to worker health, safety, and well-being. Five risk management options are presented as ways to assure that only trustworthy and ethical AI enables workplace devices, machinery, and processes. AI technologies will play a significant role in the future of work. The occupational safety and health practice and research communities need to ensure that the promise of these new AI technologies results in benefit, not harm, to workers. |
| Leukaemia, lymphoma, and multiple myeloma mortality after low-level exposure to ionising radiation in nuclear workers (INWORKS): updated findings from an international cohort study
Leuraud K , Laurier D , Gillies M , Haylock R , Kelly-Reif K , Bertke S , Daniels RD , Thierry-Chef I , Moissonnier M , Kesminiene A , Schubauer-Berigan MK , Richardson DB . Lancet Haematol 2024 BACKGROUND: A major update to the International Nuclear Workers Study (INWORKS) was undertaken to strengthen understanding of associations between low-dose exposure to penetrating forms of ionising radiation and mortality. Here, we report on associations between radiation dose and mortality due to haematological malignancies. METHODS: We assembled a cohort of 309 932 radiation-monitored workers (269 487 [87%] males and 40 445 [13%] females) employed for at least 1 year by a nuclear facility in France (60 697 workers), the UK (147 872 workers), and the USA (101 363 workers). Workers were individually monitored for external radiation exposure and followed-up from Jan 1, 1944, to Dec 31, 2016, accruing 10·72 million person-years of follow-up. Radiation-mortality associations were quantified in terms of the excess relative rate (ERR) per Gy of radiation dose to red bone marrow for leukaemia excluding chronic lymphocytic leukaemia (CLL), as well as subtypes of leukaemia, myelodysplastic syndromes, non-Hodgkin and Hodgkin lymphomas, and multiple myeloma. Estimates of association were obtained using Poisson regression methods. FINDINGS: The association between cumulative dose to red bone marrow, lagged 2 years, and leukaemia (excluding CLL) mortality was well described by a linear model (ERR per Gy 2·68, 90% CI 1·13 to 4·55, n=771) and was not modified by neutron exposure, internal contamination monitoring status, or period of hire. Positive associations were also observed for chronic myeloid leukaemia (9·57, 4·00 to 17·91, n=122) and myelodysplastic syndromes alone (3·19, 0·35 to 7·33, n=163) or combined with acute myeloid leukaemia (1·55, 0·05 to 3·42, n=598). No significant association was observed for acute lymphoblastic leukaemia (4·25, -4·19 to 19·32, n=49) or CLL (0·20, -1·81 to 2·21, n=242). A positive association was observed between radiation dose and multiple myeloma (1·62, 0·06 to 3·64, n=527) whereas minimal evidence of association was observed between radiation dose and non-Hodgkin lymphoma (0·27, -0·61 to 1·39, n=1146) or Hodgkin lymphoma (0·60, -3·64 to 4·83, n=122) mortality. INTERPRETATION: This study reports a positive association between protracted low dose exposure to ionising radiation and mortality due to some haematological malignancies. Given the relatively low doses typically accrued by workers in this study (16 mGy average cumulative red bone marrow dose) the radiation attributable absolute risk of leukaemia mortality in this population is low (one excess death in 10 000 workers over a 35-year period). These results can inform radiation protection standards and will provide input for discussions on the radiation protection system. FUNDING: National Cancer Institute, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Institut de Radioprotection et de Sûreté Nucléaire, Orano, Electricité de France, UK Health Security Agency. TRANSLATION: For the French translation of the abstract see Supplementary Materials section. |
| Patterns and correlates of traumatic stress, depression, anxiety, and moral injury in U.S. health care providers late in the COVID-19 pandemic
Papa A , Okun AH , Barile JP , Jia H , Thompson WW , Guerin RJ . Psychol Trauma 2024 OBJECTIVE: Providing health care during the COVID-19 pandemic has been associated with a high mental health burden for health care providers. This study examined patterns of responses and correlates of class membership across commonly assessed mental health symptoms, psychosocial functioning, and moral injury for providers in the United States in Fall 2022. METHOD: A convenience sample of 1,504 primary care physicians, pediatricians, nurse practitioners, and physician assistants who had been in practice for three or more years (M(age) = 46.1 years, SD(age) = 11.3, 58% male) completed self-report measures in an online, opt-in panel survey from September to November 2022. RESULTS: Using latent class analysis, three classes were identified: No/Low Symptoms (64.8%), High Moral Injury (19.9%), and Elevated Symptoms (15.2%). Several factors were correlated with class membership including age, sex, social support, personal risk of COVID-19, pandemic-related work stressors, proportion of COVID-19 patients seen at the height of the pandemic, and death of a patient due to COVID-19. CONCLUSIONS: This study found high levels of mental health symptoms, and problems with psychosocial functioning and moral injury in health care providers well past the pandemic's peak. The results also demonstrated the importance of considering the unique contribution of moral injury to psychosocial functional difficulties experienced by health care providers during the pandemic given their defined role as essential workers. These findings have implications for preventing and managing mental health problems and burnout among providers postpandemic as well as for future pandemics at both the organizational and individual levels. (PsycInfo Database Record (c) 2024 APA, all rights reserved). |
| Next-generation custom-fit reusable respiratory protective device with continuous fit monitoring - Part II: Continuous fit monitoring
Park S , Tian Y , Bergman M , Pollard J , Zhuang Z , Jayaraman S . J Int Soc Respir Prot 2024 41 (1) 38-56 Filtering facepiece respirators (FFRs) are manufactured in discrete sizes, with some models being limited in accommodating the fit of some sex and race combinations. This study presents the development of a custom-fit respiratory protective device (RPD) which conforms to a user's facial features and flexes and moves with facial movements during use. Our design also integrates a pressure-sensing network, which continuously monitors fit and will alert the user when the fit is compromised. In this Part II of the three-part series, we design and incorporate a continuous fit monitoring system in the RPD designed in Part I to enhance its role in protecting users from inhalation hazards in an effective manner during its use. The fit monitoring system comprises a fabric-based sensor network integrated into the RPD and an Android-based App designed to alert the user when the pressure at the faceseal falls below a given threshold established during the initial configuration of the RPD for the user. We also develop algorithms for the incorporation of the sensor slots and data buses into the custom-fit RPD using the Taxonomy of Landmarks defined in Part I. We enhance the structure developed in Part I to secure the sensor network during the use of the RPD. We develop algorithms for customizing a fastening hub to suit the head profiles of individuals to enable them to don the RPD quickly, easily, effectively, and in a repeatable manner. We demonstrate the successful application of the total design methodology by creating digital prototypes for three individuals with different facial profiles and make further advances to our goal of ensuring equitable respiratory protection for all including children, for whom RPDs are currently limited. |
| HIV: California's 2018 criminalization reform and testing among those reporting risk behavior
Keralis JM , Bourbeau A , Delaney KP , Odunsi S , Valentine SS . J Public Health Policy 2024 HIV criminalization laws may discourage HIV testing. We tested whether California's 2018 HIV criminalization law reform increased the likelihood of past-year HIV testing compared to Nevada, which did not reform its HIV criminalization law. We fitted two difference-in-differences logistic regression models: one for all respondents reporting behaviors that increase the chances of getting or transmitting HIV, and one for male respondents reporting these behaviors. All analyses accounted for the complex survey design of BRFSS. HIV criminalization reform was significantly associated with an increased likelihood of past-year HIV testing. After reform, the predicted marginal probability of past-year HIV testing increased by six percentage points. By comparison, probabilities of a past-year HIV test decreased in Nevada. HIV criminalization law reform may increase the likelihood of getting tested by individuals who engage in behaviors that increase the chances of getting or transmitting HIV. |
| Reported non-substance-related mental health disorders among persons who died of drug overdose - United States, 2022
Dinwiddie AT , Gupta S , Mattson CL , O'Donnell J , Seth P . MMWR Morb Mortal Wkly Rep 2024 73 (34) 747-753 Drug overdose deaths remain a public health crisis in the United States; nearly 107,000 and nearly 108,000 deaths occurred in 2021 and 2022, respectively. Persons with mental health conditions are at increased risk for overdose. In addition, substance use disorders and non-substance-related mental health disorders (MHDs) frequently co-occur. Using data from CDC's State Unintentional Drug Overdose Reporting System, this report describes characteristics of persons in 43 states and the District of Columbia who died of unintentional or undetermined intent drug overdose and had any MHD. In 2022, 21.9% of persons who died of drug overdose had a reported MHD. Using the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria, the most frequently reported MHDs were depressive (12.9%), anxiety (9.4%), and bipolar (5.9%) disorders. Overall, approximately 80% of overdose deaths involved opioids, primarily illegally manufactured fentanyls. Higher proportions of deaths among decedents with an MHD involved antidepressants (9.7%) and benzodiazepines (15.3%) compared with those without an MHD (3.3% and 8.5%, respectively). Nearly one quarter of decedents with an MHD had at least one recent potential opportunity for intervention (e.g., approximately one in 10 decedents were undergoing substance use disorder treatment, and one in 10 visited an emergency department or urgent care facility within 1 month of death). Expanding efforts to identify and address co-occurring mental health and substance use disorders (e.g., integrated screening and treatment) and strengthen treatment retention and harm reduction services could save lives. |
| A thirty-year time series analyses identifies coherence between oscillations in Anthrax outbreaks and El Niño in Karnataka, India
Chanda MM , Campbell L , Walke H , Salzer JS , Hemadri D , Patil SS , Purse BV , Shivachandra SB . Sci Rep 2024 14 (1) 19928 Anthrax is an economically important zoonotic disease affecting both livestock and humans. The disease is caused by a spore forming bacterium, Bacillus anthracis, and is considered endemic to the state of Karnataka, India. It is critical to quantify the role of climatic factors in determining the temporal pattern of anthrax outbreaks, so that reliable forecasting models can be developed. These models will aid in establishing public health surveillance and guide strategic vaccination programs, which will reduce the economic loss to farmers, and prevent the spill-over of anthrax from livestock to humans. In this study, correlation and coherence between time series of anthrax outbreaks in livestock (1987-2016) and meteorological variables and Sea Surface Temperature anomalies (SST) were identified using a combination of cross-correlation analyses, spectral analyses (wavelets and empirical mode decomposition) and further quantified using a Bayesian time series regression model accounting for temporal autocorrelation. Monthly numbers of anthrax outbreaks were positively associated with a lagged effect of rainfall and wet day frequency. Long-term periodicity in anthrax outbreaks (approximately 6-8 years) was coherent with the periodicity in SST anomalies and outbreak numbers increased with decrease in SST anomalies. These findings will be useful in planning long-term anthrax prevention and control strategies in Karnataka state of India. |
| Cluster of influenza A(H5) cases associated with poultry exposure at two facilities - Colorado, July 2024
Drehoff CC , White EB , Frutos AM , Stringer G , Burakoff A , Comstock N , Cronquist A , Alden N , Armistead I , Kohnen A , Ratnabalasuriar R , Travanty EA , Matzinger SR , Rossheim A , Wellbrock A , Pagano HP , Wang D , Singleton J , Sutter RA , Davis CT , Kniss K , Ellington S , Kirby MK , Reed C , Herlihy R . MMWR Morb Mortal Wkly Rep 2024 73 (34) 734-739
Persons who work in close contact with dairy cattle and poultry that are infected with highly pathogenic avian influenza (HPAI) A(H5N1) virus are at increased risk for infection. In July 2024, the Colorado Department of Public Health & Environment responded to two poultry facilities with HPAI A(H5N1) virus detections in poultry. Across the two facilities, 663 workers assisting with poultry depopulation (i.e., euthanasia) received screening for illness; 109 (16.4%) reported symptoms and consented to testing. Among those who received testing, nine (8.3%) received a positive influenza A(H5) virus test result, and 19 (17.4%) received a positive SARS-CoV-2 test result. All nine workers who received positive influenza A(H5) test results had conjunctivitis, experienced mild illness, and received oseltamivir. This poultry exposure-associated cluster of human cases of influenza A(H5) is the first reported in the United States. The identification of these cases highlights the ongoing risk to persons who work in close contact with infected animals. Early response to each facility using multidisciplinary, multilingual teams facilitated case-finding, worker screening, and treatment. As the prevalence of HPAI A(H5N1) virus clade 2.3.4.4b genotype B3.13 increases, U.S. public health agencies should prepare to rapidly investigate and respond to illness in agricultural workers, including workers with limited access to health care. |
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