Last data update: Dec 02, 2024. (Total: 48272 publications since 2009)
Records 1-30 (of 553 Records) |
Query Trace: Nelson R[original query] |
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Characterization of population connectivity for enhanced cross-border surveillance of yellow fever at Mutukula and Namanga borders in Tanzania
Kakulu RK , Msuya MM , Makora SH , Lucas AM , Kapinga JV , Mwangoka NK , Mehta K , McIntyre E , Boos A , Lamb GS , Mponela M , Gatei W , Merrill R , Ward S , Seleman A , Massa K , Kimaro EG , Mpolya EA . IJID Regions 2024 13 Objectives: Yellow fever (YF) remains a public health threat in Sub-Saharan Africa and South America, with an estimated 200,000 cases and 30,000 deaths annually. Although the World Health Organization considers Tanzania to be at low risk for YF because no YF cases have been reported, the country remains at alert to importation of the virus due to ecological factors and high connectivity to high-risk YF areas in other countries. This study aimed to identify points of interest with connectivity to high-risk YF areas to guide preparedness efforts in Tanzania. Methods: Using the Population Connectivity Across Borders (PopCAB) toolkit, the Nelson Mandela African Institution of Science and Technology (Department of Health and Biomedical Sciences), in collaboration with the Tanzania Ministry of Health and the Centers for Disease Control and Prevention, implemented 12 focus group discussions with participatory mapping in two high-risk borders of Mutukula and Namanga. Results: Participants identified 147 and 90 points of interest with connectivity to YF risk areas in Kenya and Uganda, respectively. The identified locations are important for trade, fishing, pastoralism, tourism, health-seeking, agriculture, mining, religious activities, education, and cross-border marriages. Conclusions: The Tanzania Ministry of Health used the results to update cross-border surveillance and risk communication strategies and vaccination guidelines to prevent the importation of YF into Tanzania. © 2024 The Authors |
Using double negative controls to adjust for healthy user bias in a recombinant Zoster Vaccine Safety Study
Li K , Emerman I , Cook AJ , Fireman BH , Sundaram M , Tseng HX , Weintraub ES , Yu O , Nelson JL , Shi X . Am J Epidemiol 2024 Unmeasured confounding is a major concern in many epidemiologic studies that are not randomized. Negative control methods can detect and reduce confounding by leveraging the proxies of the unmeasured confounders, including negative control outcomes (NCO) and exposures (NCE). An NCO is presumably unaffected by the exposure of interest but would be associated with unmeasured confounders; an NCE presumably does not affect the outcome of interest but would be associated with unmeasured confounders. A recently proposed double negative control method leverages both NCO and NCE for unmeasured confounding bias. To demonstrate this relatively new methodology in pharmacoepidemiologic studies, we re-analyzed data from a prior safety study of Recombinant Zoster Vaccine (RZV). The prior study compared risk of safety outcomes of RZV versus unvaccinated comparators, using logistic regression with propensity score adjustment. We identified NCOs and NCEs that could be used to adjust for unmeasured confounding bias that could arise if RZV recipients are incomparable to the comparators due to unmeasured factors. The double negative control analysis yielded relative risk estimates slightly closer to 1.0 than those reported previously, providing additional evidence of RZV safety that is less vulnerable to unmeasured confounding. |
How Right Now/Qué Hacer Ahora: Findings from an evaluation of a national mental health and coping campaign amidst the COVID-19 pandemic
Burke-Garcia A , Berktold J , Bailey LR , Wagstaff L , Thomas CW , Crick C , Mitchell EW , Verlenden JMV , Puddy RW , Mercado MC , Friedman A , Bruss K , Xia K , Sawyer J , Feng M , Johnson-Turbes A , Van Vleet R , Afanaseva D , Zhao X , Nelson P . Am J Orthopsychiatry 2024 Beyond its physical health impact, the COVID-19 pandemic also resulted in grief from loss of loved ones, isolation due to social distancing, stress, fear, and economic distress-all of which impacted mental health. How Right Now/Qué Hacer Ahora (HRN) is an award-winning, national campaign that provides emotional support to people disproportionately affected by COVID-19. We conducted a theory-based, culturally responsive evaluation to assess the campaign's effect on coping behaviors and resiliency between summer 2020 and spring 2021. We surveyed HRN's priority audiences (older adults/caregivers and those with preexisting health conditions, experiencing violence, or economic distress) in English and Spanish using NORC's national probability panel, AmeriSpeak, over three waves. We also analyzed social media data and monitored HRN website traffic and triangulated these data to understand the campaign's full impact. Campaign exposure was associated with people who were experiencing higher levels of stress and were more likely to seek information to support their emotional well-being. Campaign exposure was also positively associated with increased feelings of resilience and confidence in using coping strategies, especially for people experiencing violence or economic distress and people from racial and ethnic groups. Findings demonstrate the campaign's success in reaching its intended audiences with the mental health support they needed. Additionally, the HRN evaluation's design illustrates how the use of multiple data sources can elucidate a deeper understanding of campaign impact. Findings underscore that culturally responsive health communication interventions-like HRN-can provide needed mental health support and resources to disproportionately affected communities. (PsycInfo Database Record (c) 2024 APA, all rights reserved). |
Identification of raccoon rabies virus variant in a stray kitten: the role of veterinary practitioners in detection and reporting of a non-native zoonotic pathogen-Nebraska, 2023
Carpenter A , Price ER , Stein SR , Beron AJ , Divis A , Mix S , Hess AR , Nelson KM , Wetzel CT , Fredrick J , Huse L , Horn A , Loy DS , Loy JD , Morgan CN , Rodriguez SE , Shelus V , Gigante CM , Hutson CL , Orciari LA , Swedberg C , Boutelle C , Chipman RB , Donahue M , Wallace RM , Buss BF . J Am Vet Med Assoc 2024 1-4 Rabies is a fatal encephalitic disease affecting all mammals. This report describes identification of raccoon rabies virus variant isolated from a stray kitten in an urban Midwestern city that is nonendemic for this virus variant. The kitten originally presented with nonspecific neurologic abnormalities. Astute veterinary, wildlife, and public health professionals played a critical role in the identification of this fatal zoonotic disease and the extensive public health and wildlife management response that ensued. This case serves as an important reminder of the risk of rabies in unvaccinated animals or those without known vaccination status, including stray animals. |
Notes from the field: Enhanced surveillance for raccoon rabies virus variant and vaccination of wildlife for management - Omaha, Nebraska, October 2023-July 2024
Stein SR , Beron AJ , Nelson KM , Price E , Rodriguez SE , Shelus V , Carpenter A , Hess AR , Boutelle C , Morgan CN , Gigante CM , Hutson CL , Loy JD , Loy DS , Wetzel C , Frederick J , Huse L , Orciari L , Chipman RB , Wallace RM , Donahue M , Buss BF . MMWR Morb Mortal Wkly Rep 2024 73 (41) 933-935 On September 28, 2023, a kitten aged approximately 6 weeks found in Omaha, Nebraska, had test results positive for rabies at the Nebraska Veterinary Diagnostic Center (NVDC) after dying with neurologic signs and having bitten and scratched its caretakers. Preliminary investigation identified 10 exposed persons for whom postexposure prophylaxis (PEP)(†) was recommended. Subsequent variant-typing by NVDC yielded a presumptive positive result for the Eastern raccoon rabies virus variant (RRVV), which CDC confirmed on October 6. |
Maternity care practices supportive of breastfeeding in U.S. advanced neonatal care units, United States, 2022
Anstey E , Noiman A , Boundy E , Nelson J . J Perinatol 2024 OBJECTIVE: To describe breastfeeding-supportive practices in U.S. maternity hospitals with advanced neonatal care units (ANCU). STUDY DESIGN: Using 2022 mPINC data, we calculated the percent of hospitals reporting (1) breastfeeding-supportive practices for "most" (≥80%) mother-baby dyads in ANCUs, by hospital demographic characteristics and (2) infant receipt of mother's own milk or donor milk at any time while in the ANCU, by ANCU level. RESULTS: More than 90% of hospitals reported that "most" mothers (≥80%) were advised on some breastfeeding-supportive practices. Fewer hospitals reported that "most" mothers expressed milk within one hour of birth (37%) or that kangaroo care was practiced for "most" eligible newborns (63%). Receipt of mother's own milk varied by unit level and state. CONCLUSION: Breastfeeding-supportive practices requiring the technical competency of healthcare providers (e.g., early milk expression, kangaroo care) are less likely to be implemented in ANCU settings compared to practices centered around providing advice or education. |
People who self-reported testing HIV-positive but tested HIV-negative: A multi-country puzzle of data, serology, and ethics, 2015-2021
Metz M , Among VH , Dzinamarira T , Ussery F , Nkurunziza P , Bahizi J , Biraro S , Ogollah FM , Musinguzi J , Kirungi W , Naluguza M , Mwangi C , Birhanu S , Nelson LJ , Longwe H , Winterhalter FS , Voetsch AC , Parekh BS , Patel HK , Duong YT , Bray R , Farley SM . Trop Med Infect Dis 2024 9 (9) During population-based HIV impact assessments (PHIAs), some participants who self-reported testing HIV-positive (PSRP) tested negative in one or more subsequent survey HIV tests. These unexpected discrepancies between their self-reported results and the survey results draw into question the validity of either the self-reported status or the test results. We analyzed PSRP with negative test results aged 15-59 years old using data collected from 2015 to 2021 in 13 countries, assessing prevalence, self-report status, survey HIV status, viral load, rapid tests and confirmatory tests, and answers to follow-up questions (such as years on treatment). Across these surveys, 19,026 participants were PSRP, and 256 (1.3%) of these were concluded to be HIV-negative after additional survey-based testing and review. PSRP determined to be HIV-negative trended higher in countries with a higher HIV prevalence, but their number was small enough that accepting self-reported HIV-positive status without testing would not have significantly affected the prevalence estimates for HIV or viral load suppression. Additionally, using more detailed information for Uganda, we examined 107 PSRP with any negative test results and found no significant correlation with years on treatment or age. Using these details, we examined support for the possible reasons for these discrepancies beyond misdiagnosis and false reporting. These findings suggest that those conducting surveys would benefit from a nuanced understanding of HIV testing among PSRP to conduct surveys ethically and produce high-quality results. |
Safety of the seasonal influenza vaccine in 2 successive pregnancies
Getahun D , Liu IA , Sy LS , Glanz JM , Zerbo O , Vazquez-Benitez G , Nelson JC , Williams JT , Hambidge SJ , McLean HQ , Irving SA , Weintraub ES , Qian L . JAMA Netw Open 2024 7 (9) e2434857 IMPORTANCE: Although influenza vaccination has been found to be safe in pregnancy, few studies have assessed repeated influenza vaccination over successive pregnancies, including 2 vaccinations in a year, in terms of adverse perinatal outcomes. OBJECTIVE: To examine the association of seasonal influenza vaccination across successive pregnancies with adverse perinatal outcomes and whether the association varies by interpregnancy interval (IPI) and vaccine type (quadrivalent or trivalent). DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study included individuals with at least 2 successive singleton live-birth pregnancies between January 1, 2004, and December 31, 2018. Data were collected from the Vaccine Safety Datalink, a collaboration between the Centers for Disease Control and Prevention and integrated health care organizations. Data analysis was performed between January 8, 2021, and July 17, 2024. EXPOSURES: Influenza vaccination was identified using vaccine administration codes. The vaccinated cohort consisted of people who received influenza vaccines during the influenza season (August 1 through April 30) in 2 successive pregnancies. The comparator cohort consisted of people identified as unvaccinated during both pregnancies. MAIN OUTCOMES AND MEASURES: Main outcomes were risk of preeclampsia or eclampsia, placental abruption, fever, preterm birth, preterm premature rupture of membranes, chorioamnionitis, and small for gestational age among individuals with and without vaccination in both pregnancies. Adjusted relative risks (RRs) from Poisson regression were used to assess the magnitude of associations. The associations with adverse outcomes by IPI and vaccine type were evaluated. RESULTS: Of 82 055 people with 2 singleton pregnancies between 2004 and 2018, 44 879 (54.7%) had influenza vaccination in successive pregnancies. Mean (SD) age at the start of the second pregnancy was 32.2 (4.6) years for vaccinated individuals and 31.2 (5.0) years for unvaccinated individuals. Compared with individuals not vaccinated in both pregnancies, vaccination in successive pregnancies was not associated with increased risk of preeclampsia or eclampsia (adjusted RR, 1.10; 95% CI, 0.99-1.21), placental abruption (adjusted RR, 1.01; 95% CI, 0.84-1.21), fever (adjusted RR, 0.87; 95% CI, 0.47-1.59), preterm birth (adjusted RR, 0.83; 95% CI, 0.78-0.89), preterm premature rupture of membranes (RR, 1.00; 95% CI, 0.94-1.06), chorioamnionitis (adjusted RR, 1.03; 95% CI, 0.90-1.18), or small for gestational age birth (adjusted RR, 0.99; 95% CI, 0.93-1.05). IPI and vaccine type did not modify the observed associations. CONCLUSIONS AND RELEVANCE: In this large cohort study of successive pregnancies, influenza vaccination was not associated with increased risk of adverse perinatal outcomes, irrespective of IPI and vaccine type. Findings support recommendations to vaccinate pregnant people or those who might be pregnant during the influenza season. |
Epidemiology of lyme disease diagnoses among older adults, United States, 2016-2019(1)
Schwartz AM , Nelson CA , Hinckley AF . Emerg Infect Dis 2024 30 (9) 1926-1929 We used Medicare data to identify >88,000 adults >65 years of age diagnosed and treated for Lyme disease during 2016-2019 in the United States. Most diagnoses occurred among residents of high-incidence states, in summer, and among men. Incidence of diagnoses was substantially higher than that reported through public health surveillance. |
A health equity science approach to assessing drivers of COVID-19 vaccination coverage disparities over the course of the COVID-19 pandemic, United States, December 2020-December 2022
Woolfork MN , Haire K , Farinu O , Ruffin J , Nelson JM , Coronado F , Silk BJ , Harris L , Walker C , Manns BJ . Vaccine 2024 126158 INTRODUCTION: Health equity science examines underlying social determinants, or drivers, of health inequities by building an evidence base to guide action across programs, public health surveillance, policy, and communications efforts. A Social Vulnerability Index (SVI) was utilized during the COVID-19 response to identify areas where inequities exist and support communities with vaccination. We set out to assess COVID-19 vaccination coverage by two SVI themes, Racial and Ethnicity Minority Status and Housing Type and Transportation to examine disparities. METHODS: US county-level COVID-19 vaccine administration data among persons aged 5 years and older reported to the Centers for Disease Control and Prevention from December 14, 2020 to December 14, 2022, were analyzed. Counties were categorized 1) into tertiles (low, moderate, high) according to each SVI theme's level of vulnerability or 2) dichotomized by urban or rural classification. Primary series vaccination coverage per age group were assessed for SVI social factors by SVI theme tertiles or urbanicity. RESULTS: Older adults aged 65 years and older had the highest vaccination coverage across all vulnerability factors compared with children aged 5-17 years and adults aged 18-64 years. Overall, children and adults had higher vaccination coverage in counties of high vulnerability. Greater vaccination coverage differences were observed by urbanicity as rural counties had some of the lowest vaccination coverage for children and adults. CONCLUSION: COVID-19 vaccination efforts narrowed gaps in coverage for adults aged 65 years and older but larger vaccination coverage differences remained among younger populations. Moreover, greater disparities in coverage existed in rural counties. Health equity science approaches to analyses should extend beyond identifying differences by basic demographics such as race and ethnicity and include factors that provide context (housing, transportation, age, and geography) to assist with prioritization of vaccination efforts where true disparities in vaccination coverage exist. |
Tinnitus after COVID-19 vaccination: Findings from the vaccine adverse event reporting system and the vaccine safety datalink
Yih WK , Duffy J , Su JR , Bazel S , Fireman B , Hurley L , Maro JC , Marquez P , Moro P , Nair N , Nelson J , Smith N , Sundaram M , Vasquez-Benitez G , Weintraub E , Xu S , Shimabukuro T . Am J Otolaryngol 2024 45 (6) 104448 PURPOSE: To assess the occurrence of tinnitus following COVID-19 vaccination using data mining and descriptive analyses in two U.S. vaccine safety surveillance systems. METHODS: Reports of tinnitus after COVID-19 vaccination to the Vaccine Adverse Event Reporting System (VAERS) from 2020 through 2024 were examined using empirical Bayesian data mining and by calculating reporting rates. In the Vaccine Safety Datalink (VSD) population, ICD-10 coded post-vaccination medical visits were examined using tree-based data mining, and tinnitus visit incidence rates during post-vaccination days 1-140 were calculated by age group for COVID-19 vaccines and for comparison, influenza vaccine. RESULTS: VAERS data mining did not find disproportionate reporting of tinnitus for any COVID-19 vaccine. VAERS received up to 84.82 tinnitus reports per million COVID-19 vaccine doses administered. VSD tree-based data mining found no signals for tinnitus. VSD tinnitus visit incidence rates after COVID-19 vaccines were similar to those after influenza vaccine except for the group aged ≥65 years (Moderna COVID-19 vaccine, 165 per 10,000 person-years; Pfizer-BioNTech COVID-19 vaccine, 154; influenza vaccine, 135). CONCLUSIONS: Overall, these findings do not support an increased risk of tinnitus following COVID-19 vaccination but cannot definitively exclude the possibility. Descriptive comparisons between COVID-19 and influenza vaccines were limited by lack of adjustment for potential confounding factors. |
Brainstorm: A case of granulomatous encephalitis
Benoit Patrick , Wang Stephanie , Wang Catherine , Chakravarti Arpita , Villalba Julian A , Ali Ibne Karim M , Roy Shantanu , Sapp Sarah GH , Reagan-Steiner Sarah , Nelson Kristoff , Cayrol Romain , Luong Me-Linh , Grand'Maison Sophie , Desjardins Michaël . J Assoc Med Microbiol Infect Dis Can 2024 9 (2) 113-120 Background: Free-living amoebas (FLAs) can cause severe and fatal central nervous system infections that are difficult to diagnose. Methods: We present the case of a 74-year-old immunocompetent woman admitted for focal neurological symptoms with enhancing lesions in the right cerebellar hemisphere. A first cerebral biopsy showed granulomatous inflammation, but no microorganisms were identified. After transient clinical improvement, she eventually deteriorated 4 months after initial presentation, with an MRI confirming multiple new masses affecting all cerebral lobes. Results: A second brain biopsy revealed granulomatous and acute inflammation with organisms containing a large central nucleus with prominent karyosome, consistent with FLAs. Immunohistochemical and polymerase chain reaction assays performed at CDC were positive for Acanthamoeba spp, confirming the diagnosis of granulomatous amoebic encephalitis (GAE) caused by Acanthamoeba spp. The patient was treated with combination therapy recommended by CDC, but died a few days later. Upon histopathological rereview, amoebic cysts and trophozoites were identified by histochemical and immunohistochemical methods in the first cerebral biopsy. Conclusion: FLA infections can be challenging to diagnose because of the low incidence, non-specific clinical and radiological presentation, lack of accessible diagnostic tools, and clinicians' unfamiliarity. This case highlights the importance of recognizing FLA as a potential cause of granulomatous encephalitis, even in the absence of risk factors, as early treatment might be associated with favourable outcomes in case reports. When suspected, CDC laboratories offer tests to confirm the diagnosis promptly. | Historique : Les amibes libres peuvent causer des infections du système nerveux central graves et fatales qui sont difficiles à diagnostiquer. Méthodologie : Les auteurs présentent le cas d'une femme immunocompétente de 74 ans hospitalisée à cause de symptômes neurologiques focaux avec lésions rehaussantes dans l'hémisphère cérébelleux droit. Une première biopsie cérébrale a révélé une inflammation granulomateuse, mais aucun microorganisme n'a été décelé. Après une amélioration clinique transitoire, son état s'est détérioré quatre mois après la première consultation, et l'IRM a confirmé de multiples nouvelles masses touchant tous les lobes cérébraux. Résultats : Une deuxième biopsie cérébrale a révélé une inflammation granulomateuse aiguë par des organismes dont les gros noyaux centraux et les caryosomes volumineux étaient évocateurs d'amibes libres. L'immunohistochimie et l'amplification en chaîne par polymérase effectuées aux CDC se sont avérés positives pour Acanthamoeba spp, ce qui a confirmé un diagnostic d'encéphalite amibienne granulomateuse causée par Acanthamoeba spp. La patiente a reçu une polythérapie recommandée par les CDC, mais est malheureusement décédée quelques jours plus tard. À la reprise de l'analyse histopathologique, des kystes amibiens et des trophozoïtes ont été décelés dans la première biopsie cérébrale par des méthodes histochimiques et immunohistochimiques. Conclusion : Les infections par des amibes libres peuvent être difficiles à diagnostiquer en raison de leur faible incidence, de leur présentation clinique et radiologique non spécifique, de l'absence d'outils diagnostiques accessibles et de la méconnaissance des cliniciens. Ce cas renforce l'importance d'inclure les amibes libres dans les causes potentielles d'encéphalite granulomateuse, même en l'absence de facteurs de risque, car un traitement rapide a été associé à des résultats favorables dans certains rapports de cas. Lorsqu'on en soupçonne la présence, les laboratoires des CDC offrent des tests pour confirmer rapidement le diagnostic. |
Measuring the direct medical costs of hospital-onset infections using an analogy costing framework
Scott RD 2nd , Culler SD , Baggs J , Reddy SC , Slifka KJ , Magill SS , Kazakova SV , Jernigan JA , Nelson RE , Rosenman RE , Wandschneider PR . Pharmacoeconomics 2024 BACKGROUND: The majority of recent estimates on the direct medical cost attributable to hospital-onset infections (HOIs) has focused on device- or procedure-associated HOIs. The attributable costs of HOIs that are not associated with device use or procedures have not been extensively studied. OBJECTIVE: We developed simulation models of attributable cost for 16 HOIs and estimated the total direct medical cost, including nondevice-related HOIs in the USA for 2011 and 2015. DATA AND METHODS: We used total discharge costs associated with HOI-related hospitalization from the National Inpatient Sample and applied an analogy costing methodology to develop simulation models of the costs attributable to HOIs. The mean attributable cost estimate from the simulation analysis was then multiplied by previously published estimates of the number of HOIs for 2011 and 2015 to generate national estimates of direct medical costs. RESULTS: After adjusting all estimates to 2017 US dollars, attributable cost estimates for select nondevice-related infections attributable cost estimates ranged from $7661 for ear, eye, nose, throat, and mouth (EENTM) infections to $27,709 for cardiovascular system infections in 2011; and from $8394 for EENTM to $26,445 for central nervous system infections in 2016 (based on 2015 incidence data). The national direct medical costs for all HOIs were $14.6 billion in 2011 and $12.1 billion in 2016. Nondevice- and nonprocedure-associated HOIs comprise approximately 26-28% of total HOI costs. CONCLUSION: Results suggest that nondevice- and nonprocedure-related HOIs result in considerable costs to the healthcare system. |
Notes from the field: Multidisciplinary approach to investigating Brucella canis exposures - South Carolina, September 2023
Moore TS , Lancaster A , Nelson J , Sanders J , Johnson M , Moore A , Tori M . MMWR Morb Mortal Wkly Rep 2024 73 (25) 581-582 |
Treatment outcomes for tuberculosis infection and disease among persons deprived of liberty, Uganda, 2020
Lukoye D , Kalamya JN , Awor AC , Gustavson G , Kabanda J , Ferroussier-Davis O , Kajoba C , Kanyamibwa A , Marungu L , Turyahabwe S , Muchuro S , Mills L , Dirlikov E , Nelson LJ . Emerg Infect Dis 2024 30 (7) 1402-1405 We report that unsuccessful treatment outcomes were 11.8% for tuberculosis (TB) disease and 21.8% for TB infection among persons deprived of liberty in Uganda Prisons Service facilities. Remedial efforts should include enhancing referral networks to ensure treatment continuity, strengthening data systems for complete outcome documentation, and prioritizing short-course treatment regimens. |
High viral suppression rates among PLHIV on dolutegravir who had an initial episode of viral non-suppression in Uganda September 2020-July 2021
Namayanja GA , Da Silva JF , Elur B , Nasirumbi PM , Raizes E , Ssempiira J , Nazziwa E , Nabukenya M , Sewanyana I , Balaba J , Ntale J , Calnan J , Birabwa E , Akao J , Mwangi C , Naluguza M , Ahimbisibwe A , Katureebe C , Nabadda S , Nelson L , Dirlikov E . PLoS One 2024 19 (6) e0305129 BACKGROUND: In 2019, WHO recommended dolutegravir (DTG) as a backbone for first- and second-line antiretroviral therapy (ART) regimens for people living with HIV (PLHIV). According to the 2018 Uganda's HIV treatment guidelines, patients with viral non-suppression (≥1,000 copies/mL) should receive intensive adherence counseling (IAC) with repeat viral load (VL) within 6 months. This analysis focused on the prevalence and factors associated with viral suppression following IAC among PLHIV on DTG-based regimens (DBRs) with an initial episode of viral non-suppression (VNS) in Uganda. METHODS: We conducted a retrospective analysis for PLHIV on DBRs with an initial episode of VNS (≥1,000 copies/mL) in Uganda during October 2019-September 2020 who had a follow up VL test result during September 2020-July 2021. Data were abstracted from the Central Public Health Laboratory (CPHL) database, including patient demographics and VL results. Viral non-suppression (VNS) was defined as a VL test result of ≥1,000 copies/mL. We characterized PLHIV on DBRs and used logistic regression models to determine factors associated with VL suppression after an initial episode of VNS. RESULTS: A total of 564 PLHIV on DBRs with an initial episode of VNS were followed up and 43 were excluded due to missing data. Of the 521, 220 (42.2%) were children (<15 years) and 231 (44.3%) were female. Median age was 28 years (interquartile range [IQR]: 12-43 years), and median duration on DBRs was 12 months (IQR: 6-15 months). Overall, 80.8% (421/521) PLHIV had a suppressed viral load at first follow up testing (children = 74.5% [164/220]; adults = 85.4% [257/301]). Children with initial VL results ≥5,000 copies/mL were less likely to achieve viral suppression at follow up testing compared to those with <5,000 copies/mL (AOR: 0.38; 95% CI: 0.20-0.71; p = 0.002). CONCLUSIONS: In a programmatic setting, most adults and children suppressed following an initial episode of VNS on DBRs. High rates of suppression after VNS suggest adherence challenges, rather than drug resistance. Continuation of DBRs should be considered before regimen switch. |
Strategies to enhance COVID-19 vaccine uptake among prioritized groups, Uganda-lessons learned and recommendations for future pandemics
Kiiza D , Semanda JN , Kawere BB , Ajore C , Wasswa CK , Kwiringira A , Tumukugize E , Sserubidde J , Namyalo N , Wadria RB , Mukiibi P , Kasule J , Chemos I , Ruth AW , Atugonza R , Banage F , Wibabara Y , Ampaire I , Driwale A , Vosburgh W , Nelson L , Lamorde M , Boore A . Emerg Infect Dis 2024 30 (7) 1326-1334 COVID-19 vaccination was launched in March 2021 in Uganda and initially prioritized persons >50 years of age, persons with underlying conditions, healthcare workers, teachers, and security forces. However, uptake remained low 5 months after the program launch. Makerere University's Infectious Diseases Institute supported Uganda's Ministry of Health in optimizing COVID-19 vaccination uptake models by using point-of-care, place of worship, and place of work engagement and the Social Assistance Grant for Empowerment model in 47 of 135 districts in Uganda, where we trained influencers to support mobilization for vaccination outreach under each model. During July-December, vaccination rates increased significantly in targeted regions, from 92% to 130% for healthcare workers, 40% to 90% for teachers, 25% to 33% for security personnel, 6% to 15% for persons >50 years of age, and 6% to 11% for persons with underlying conditions. Our approach could be adopted in other targeted vaccination campaigns for future pandemics. |
Distilling the fundamentals of evidence-based public health policy
Kelly MA , Puddy RW , Siddiqi SM , Nelson C , Ntazinda AH , Kucik JE , Hall D , Murray CT , Tomoaia-Cotisel A . Public Health Rep 2024 333549241256751 Public health policy interventions are associated with many important public health achievements. To provide public health practitioners and decision makers with practical approaches for examining and employing evidence-based public health (EBPH) policy interventions, we describe the characteristics and benefits that distinguish EBPH policy interventions from programmatic interventions. These characteristics include focusing on health at a population level, focusing on upstream drivers of health, and involving less individual action than programmatic interventions. The benefits of EBPH policy interventions include more sustained effects on health than many programs and an enhanced ability to address health inequities. Early childhood education and universal preschool provide a case example that illustrates the distinction between EBPH policy and programmatic interventions. This review serves as the foundation for 3 concepts that support the effective use of public health policy interventions: applying core component thinking to understand the population health effects of EBPH policy interventions; understanding the influence of existing policies, policy supports, and the context in which a particular policy is implemented on the effectiveness of that policy; and employing a systems thinking approach to identify leverage points where policy implementation can have a meaningful effect. |
ASO Visual Abstract: National Cancer Database conforms with standardized framework for registry and data quality
Palis BE , Janczewski LM , Browner AE , Cotler J , Nogueira L , Richardson LC , Benard V , Wilson RJ , Walker N , McCabe RM , Boffa DJ , Nelson H . Ann Surg Oncol 2024 |
Coronavirus Disease 2019 (COVID-19) vaccination and stillbirth in the Vaccine Safety Datalink
Denoble AE , Vazquez-Benitez G , Sheth SS , Ackerman-Banks CM , DeSilva MB , Zhu J , Daley MF , Getahun D , Klein NP , Vesco KK , Irving SA , Nelson J , Williams JTB , Hambidge SJ , Donahue JG , Weintraub ES , Kharbanda EO , Lipkind HS . Obstet Gynecol 2024 OBJECTIVE: Coronavirus disease 2019 (COVID-19) vaccination is recommended in pregnancy to reduce the risk of severe morbidity from COVID-19. However, vaccine hesitancy persists among pregnant people, with risk of stillbirth being a primary concern. Our objective was to examine the association between COVID-19 vaccination and stillbirth. METHODS: We performed a matched case-control study in the Vaccine Safety Datalink (VSD). Stillbirths and live births were selected from singleton pregnancies among persons aged 16-49 years with at least one prenatal, delivery, or postpartum visit at eight participating VSD sites. Stillbirths identified through diagnostic codes were adjudicated to confirm the outcome, date, and gestational age at fetal death. Confirmed antepartum stillbirths that occurred between February 14, 2021, and February 27, 2022, then were matched 1:3 to live births by pregnancy start date, VSD site, and maternal age at delivery. Associations among antepartum stillbirth and COVID-19 vaccination in pregnancy, vaccine manufacturer, number of vaccine doses received, and vaccination within 6 weeks before stillbirth (or index date in live births) were evaluated using conditional logistic regression. RESULTS: In the matched analysis of 276 confirmed antepartum stillbirths and 822 live births, we found no association between COVID-19 vaccination during pregnancy and stillbirth (38.4% stillbirths vs 39.3% live births in vaccinated individuals, adjusted odds ratio [aOR] 1.02, 95% CI, 0.76-1.37). Furthermore, no association between COVID-19 vaccination and stillbirth was detected by vaccine manufacturer (Moderna: aOR 1.00, 95% CI, 0.62-1.62; Pfizer-BioNTech: aOR 1.00, 95% CI, 0.69-1.43), number of vaccine doses received during pregnancy (1 vs 0: aOR 1.17, 95% CI, 0.75-1.83; 2 vs 0: aOR 0.98, 95% CI, 0.81-1.17), or COVID-19 vaccination within the 6 weeks before stillbirth or index date compared with no vaccination (aOR 1.16, 95% CI, 0.74-1.83). CONCLUSION: No association was found between COVID-19 vaccination and stillbirth. These findings further support recommendations for COVID-19 vaccination in pregnancy. |
Population-based study of rare epilepsy incidence in a US urban population
Barbour K , Tian N , Yozawitz EG , Wolf S , McGoldrick PE , Sands TT , Nelson A , Basma N , Grinspan ZM . Epilepsia 2024 OBJECTIVE: This study was undertaken to estimate incidence of rare epilepsies and compare with literature. METHODS: We used electronic health record text search to identify children with 28 rare epilepsies in New York City (2010-2014). We estimated cumulative incidence and compared with literature. RESULTS: Eight of 28 rare epilepsies had five or more prior estimates, and our measurements were within the published range for all. The most common were infantile epileptic spasms syndrome (1 in 2920 live births), Lennox-Gastaut syndrome (1 in 9690), and seizures associated with tuberous sclerosis complex (1 in 14 300). Fifteen of 28 had fewer than five prior estimates, and of these, we provided additional estimates for early infantile developmental and epileptic encephalopathy (1 in 32 700), epilepsy with myoclonic-atonic seizures (1 in 34 100), Sturge-Weber syndrome plus seizures/epilepsy (1 in 40 900), epilepsy in infancy with migrating focal seizures (1 in 54 500), Aicardi syndrome plus seizures/epilepsy (1 in 71 600), hypothalamic hamartoma with seizures (1 in 225 000), and Rasmussen syndrome (1 in 450 000). Five of 28 rare epilepsies had no prior estimates, and of these, we provided a new estimate for developmental/epileptic encephalopathy with spike-and-wave activation in sleep and/or continuous spikes and waves during sleep (1 in 34 100). Data were limited for the remaining 12 rare epilepsies, which were all genetic epilepsies, including PCDH19, CDKL5, Alpers disease, SCN8A, KCNQ2, SCN2A, GLUT1 deficiency, Phelan-McDermid syndrome, myoclonic epilepsy with ragged-red fibers, dup15q syndrome, ring chromosome 14, and ring chromosome 20. SIGNIFICANCE: We estimated the incidence of rare epilepsies using population-based electronic health record data and literature review. More research is needed to better estimate the incidence of genetic epilepsies with nonspecific clinical features. Electronic health records may be a valuable data source for studying rare epilepsies and other rare diseases, particularly as genetic testing becomes more widely adopted. |
Provision of cervical cancer services for women living with HIV, Uganda
Kalamya JN , DeCuir J , Alger SX , Ninsiima J , Kabanda J , Komakech P , Lubega M , Nantege G , Birabwa E , Nyombi TN , Namukanja P , Baveewo S , Ssendiwala J , Calnan J , Mwangi C , Nakawuka M , Mutungi G , Nelson LJ , Dirlikov E . Bull World Health Organ 2024 102 (6) 382-388 OBJECTIVE: To describe the scale-up of cervical cancer screening and treatment for women living with human immunodeficiency virus (HIV), aged 25-49 years in Uganda, and to analyse the programme data. METHODS: The health ministry targeted existing HIV clinics in a 2-year scale-up of cervical cancer screening services from October 2020. In preparation, we trained health workers to assess women attending HIV clinics for screening eligibility, provided either by human papillomavirus (HPV) testing and/or visual inspection with acetic acid. Clinic staff treated women with precancerous cervical lesions with thermocoagulation or referred women with suspected cancer to external services. We analysed data reported every 6 months for the number of clinics offering screening, screening uptake, the number of positive diagnoses and the number of women who received treatment. FINDINGS: The number of HIV clinics offering cervical cancer screening services increased from 11, before the programme launch, to 1571. During the programme, screening uptake increased from 5.0% (6506/130 293) to 107.3% (151 872/141 527) of targets. The cumulative proportion of positive diagnoses was 5.9% (23 970/407 323) overall, but was much lower for screening offering visual inspection only compared with clinics offering HPV testing. Although the proportion of women receiving treatment if positive increased from 12.8% (53/413) to 84.3% (8087/9592), the World Health Organization target of 90% was not reached. CONCLUSION: We demonstrated marked increases, potentially replicable by other countries, in screening and treatment. These increases could be improved further by expanding HPV testing and same-day treatment of precancerous lesions. |
Advancing evidence-based public health policy: How core component thinking can illuminate the multilevel nature of public health policy
Puddy RW , Kelly MA , Nelson C , Ntazinda AH , Siddiqi S , Hall D , Murray CT , Kucik JE . Public Health Rep 2024 333549241247708 A growing body of literature uses the concept of core components to better understand small-scale programmatic interventions. Instead of interventions being viewed as unitary "black boxes," interventions are viewed as configurations of core components, which are the parts of interventions that carry their causal potential and therefore need to be reproduced with fidelity to produce the intended effect. To date, the concept of core components has not been as widely applied to public health policy interventions as it has to programmatic interventions. The purpose of this topical review is to familiarize public health practitioners and policy makers with the concept of core components as applied to public health policy interventions. Raising the profile of core component thinking can foster mindful adaptation and implementation of public health policy interventions while encouraging further research to enhance the supporting evidence base. We present 3 types of multilevel interactions in which the core components of a public health policy intervention produce effects at the population level by (1) seeking to directly affect individual behavior, (2) facilitating adoption of programmatic interventions by intermediaries, and (3) encouraging intermediaries to take action that can shape changes in upstream drivers of population health. Changing the unit of analysis from whole policies to core components can provide a basis for understanding how policies work and for facilitating novel evidence-generating strategies and rapid evidence reviews that can inform future adaptation efforts. |
Post-COVID conditions following COVID-19 vaccination: a retrospective matched cohort study of patients with SARS-CoV-2 infection
Malden DE , Liu IA , Qian L , Sy LS , Lewin BJ , Asamura DT , Ryan DS , Bezi C , Williams JTB , Kaiser R , Daley MF , Nelson JC , McClure DL , Zerbo O , Henninger ML , Fuller CC , Weintraub ES , Saydah S , Tartof SY . Nat Commun 2024 15 (1) 4101 COVID-19 vaccinations protect against severe illness and death, but associations with post-COVID conditions (PCC) are less clear. We aimed to evaluate the association between prior COVID-19 vaccination and new-onset PCC among individuals with SARS-CoV-2 infection across eight large healthcare systems in the United States. This retrospective matched cohort study used electronic health records (EHR) from patients with SARS-CoV-2 positive tests during March 2021-February 2022. Vaccinated and unvaccinated COVID-19 cases were matched on location, test date, severity of acute infection, age, and sex. Vaccination status was ascertained using EHR and integrated data on externally administered vaccines. Adjusted relative risks (RRs) were obtained from Poisson regression. PCC was defined as a new diagnosis in one of 13 PCC categories 30 days to 6 months following a positive SARS-CoV-2 test. The study included 161,531 vaccinated COVID-19 cases and 161,531 matched unvaccinated cases. Compared to unvaccinated cases, vaccinated cases had a similar or lower risk of all PCC categories except mental health disorders (RR: 1.06, 95% CI: 1.02-1.10). Vaccination was associated with ≥10% lower risk of sensory (RR: 0.90, 0.86-0.95), circulatory (RR: 0.88, 0.83-0.94), blood and hematologic (RR: 0.79, 0.71-0.89), skin and subcutaneous (RR: 0.69, 0.66-0.72), and non-specific COVID-19 related disorders (RR: 0.53, 0.51-0.56). In general, associations were stronger at younger ages but mostly persisted regardless of SARS-CoV-2 variant period, receipt of ≥3 vs. 1-2 vaccine doses, or time since vaccination. Pre-infection vaccination was associated with reduced risk of several PCC outcomes and hence may decrease the long-term consequences of COVID-19. |
The National Cancer Database conforms to the standardized framework for registry and data quality
Palis BE , Janczewski LM , Browner AE , Cotler J , Nogueira L , Richardson LC , Benard V , Wilson RJ , Walker N , McCabe RM , Boffa DJ , Nelson H . Ann Surg Oncol 2024 BACKGROUND: Standardization of procedures for data abstraction by cancer registries is fundamental for cancer surveillance, clinical and policy decision-making, hospital benchmarking, and research efforts. The objective of the current study was to evaluate adherence to the four components (completeness, comparability, timeliness, and validity) defined by Bray and Parkin that determine registries' ability to carry out these activities to the hospital-based National Cancer Database (NCDB). METHODS: Tbis study used data from U.S. Cancer Statistics, the official federal cancer statistics and joint effort between the Centers for Disease Control and Prevention (CDC) and the National Cancer Institute (NCI), which includes data from National Program of Cancer Registries (NPCR) and Surveillance, Epidemiology, and End Results (SEER) to evaluate NCDB completeness between 2016 and 2020. The study evaluated comparability of case identification and coding procedures. It used Commission on Cancer (CoC) standards from 2022 to assess timeliness and validity. RESULTS: Completeness was demonstrated with a total of 6,828,507 cases identified within the NCDB, representing 73.7% of all cancer cases nationwide. Comparability was followed using standardized and international guidelines on coding and classification procedures. For timeliness, hospital compliance with timely data submission was 92.7%. Validity criteria for re-abstracting, recording, and reliability procedures across hospitals demonstrated 94.2% compliance. Additionally, data validity was shown by a 99.1% compliance with histologic verification standards, a 93.6% assessment of pathologic synoptic reporting, and a 99.1% internal consistency of staff credentials. CONCLUSION: The NCDB is characterized by a high level of case completeness and comparability with uniform standards for data collection, and by hospitals with high compliance, timely data submission, and high rates of compliance with validity standards for registry and data quality evaluation. |
Comprehensive Search for Novel Circulating miRNAs and Axon Guidance Pathway Proteins Associated with Risk of End Stage Kidney Disease in Diabetes.
Satake E , Saulnier PJ , Kobayashi H , Gupta MK , Looker HC , Wilson JM , Md Dom ZI , Ihara K , O'Neil K , Krolewski B , Pipino C , Pavkov ME , Nair V , Bitzer M , Niewczas MA , Kretzler M , Mauer M , Doria A , Najafian B , Kulkarni RN , Duffin KL , Pezzolesi MG , Kahn CR , Nelson RG , Krolewski AS . J Am Soc Nephrol 2021 32 (9) 2331-2351 BACKGROUND: Mechanisms underlying the pro gression of diabetic kidney disease to ESKD are not fully understood. METHODS: We performed global microRNA (miRNA) analysis on plasma from two cohorts consisting of 375 individuals with type 1 and type 2 diabetes with late diabetic kidney disease, and targeted proteomics analysis on plasma from four cohorts consisting of 746 individuals with late and early diabetic kidney disease. We examined structural lesions in kidney biopsy specimens from the 105 individuals with early diabetic kidney disease. Human umbilical vein endothelial cells were used to assess the effects of miRNA mimics or inhibitors on regulation of candidate proteins. RESULTS: In the late diabetic kidney disease cohorts, we identified 17 circulating miRNAs, represented by four exemplars (miR-1287-5p, miR-197-5p, miR-339-5p, and miR-328-3p), that were strongly associated with 10-year risk of ESKD. These miRNAs targeted proteins in the axon guidance pathway. Circulating levels of six of these proteins-most notably, EFNA4 and EPHA2-were strongly associated with 10-year risk of ESKD in all cohorts. Furthermore, circulating levels of these proteins correlated with severity of structural lesions in kidney biopsy specimens. In contrast, expression levels of genes encoding these proteins had no apparent effects on the lesions. In in vitro experiments, mimics of miR-1287-5p and miR-197-5p and inhibitors of miR-339-5p and miR-328-3p upregulated concentrations of EPHA2 in either cell lysate, supernatant, or both. CONCLUSIONS: This study reveals novel mechanisms involved in progression to ESKD and points to the importance of systemic factors in the development of diabetic kidney disease. Some circulating miRNAs and axon guidance pathway proteins represent potential targets for new therapies to prevent and treat this condition. |
Attitudes toward COVID-19 vaccines among pregnant and recently pregnant individuals
Williams JTB , Kurlandsky K , Breslin K , Durfee MJ , Stein A , Hurley L , Shoup JA , Reifler LM , Daley MF , Lewin BJ , Goddard K , Henninger ML , Nelson JC , Vazquez-Benitez G , Hanson KE , Fuller CC , Weintraub ES , McNeil MM , Hambidge SJ . JAMA Netw Open 2024 7 (4) e245479 IMPORTANCE: Pregnant people and infants are at high risk of severe COVID-19 outcomes. Understanding changes in attitudes toward COVID-19 vaccines among pregnant and recently pregnant people is important for public health messaging. OBJECTIVE: To assess attitudinal trends regarding COVID-19 vaccines by (1) vaccination status and (2) race, ethnicity, and language among samples of pregnant and recently pregnant Vaccine Safety Datalink (VSD) members from 2021 to 2023. DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional surveye study included pregnant or recently pregnant members of the VSD, a collaboration of 13 health care systems and the US Centers for Disease Control and Prevention. Unvaccinated, non-Hispanic Black, and Spanish-speaking members were oversampled. Wave 1 took place from October 2021 to February 2022, and wave 2 took place from November 2022 to February 2023. Data were analyzed from May 2022 to September 2023. EXPOSURES: Self-reported or electronic health record (EHR)-derived race, ethnicity, and preferred language. MAIN OUTCOMES AND MEASURES: Self-reported vaccination status and attitudes toward monovalent (wave 1) or bivalent Omicron booster (wave 2) COVID-19 vaccines. Sample- and response-weighted analyses assessed attitudes by vaccination status and 3 race, ethnicity, and language groupings of interest. RESULTS: There were 1227 respondents; all identified as female, the mean (SD) age was 31.7 (5.6) years, 356 (29.0%) identified as Black race, 555 (45.2%) identified as Hispanic ethnicity, and 445 (36.3%) preferred the Spanish language. Response rates were 43.5% for wave 1 (652 of 1500 individuals sampled) and 39.5% for wave 2 (575 of 1456 individuals sampled). Respondents were more likely than nonrespondents to be White, non-Hispanic, and vaccinated per EHR. Overall, 76.8% (95% CI, 71.5%-82.2%) reported 1 or more COVID-19 vaccinations; Spanish-speaking Hispanic respondents had the highest weighted proportion of respondents with 1 or more vaccination. Weighted estimates of somewhat or strongly agreeing that COVID-19 vaccines are safe decreased from wave 1 to 2 for respondents who reported 1 or more vaccinations (76% vs 50%; χ21 = 7.8; P < .001), non-Hispanic White respondents (72% vs 43%; χ21 = 5.4; P = .02), and Spanish-speaking Hispanic respondents (76% vs 53%; χ21 = 22.8; P = .002). CONCLUSIONS AND RELEVANCE: Decreasing confidence in COVID-19 vaccine safety in a large, diverse pregnant and recently pregnant insured population is a public health concern. |
CDC's hospital-onset Clostridioides difficile prevention framework in a regional hospital network
Turner NA , Krishnan J , Nelson A , Polage CR , Sinkowitz-Cochran RL , Fike L , Kuhar DT , Kutty PK , Snyder RL , Anderson DJ . JAMA Netw Open 2024 7 (3) e243846 IMPORTANCE: Despite modest reductions in the incidence of hospital-onset Clostridioides difficile infection (HO-CDI), CDI remains a leading cause of health care-associated infection. As no single intervention has proven highly effective on its own, a multifaceted approach to controlling HO-CDI is needed. OBJECTIVE: To assess the effectiveness of the Centers for Disease Control and Prevention's Strategies to Prevent Clostridioides difficile Infection in Acute Care Facilities Framework (hereafter, the Framework) in reducing HO-CDI incidence. DESIGN, SETTING, AND PARTICIPANTS: This quality improvement study was performed within the Duke Infection Control Outreach Network from July 1, 2019, through March 31, 2022. In all, 20 hospitals in the network participated in an implementation study of the Framework recommendations, and 26 hospitals did not participate and served as controls. The Framework has 39 discrete intervention categories organized into 5 focal areas for CDI prevention: (1) isolation and contact precautions, (2) CDI confirmation, (3) environmental cleaning, (4) infrastructure development, and (5) antimicrobial stewardship engagement. EXPOSURES: Monthly teleconferences supporting Framework implementation for the participating hospitals. MAIN OUTCOMES AND MEASURES: Primary outcomes were HO-CDI incidence trends at participating hospitals compared with controls and postintervention HO-CDI incidence at intervention sites compared with rates during the 24 months before the intervention. RESULTS: The study sample included a total of 2184 HO-CDI cases and 7 269 429 patient-days. In the intervention cohort of 20 participating hospitals, there were 1403 HO-CDI cases and 3 513 755 patient-days, with a median (IQR) HO-CDI incidence of 2.8 (2.0-4.3) cases per 10 000 patient-days. The first analysis included an additional 3 755 674 patient-days and 781 HO-CDI cases among the 26 controls, with a median (IQR) HO-CDI incidence of 1.1 (0.7-2.7) case per 10 000 patient-days. The second analysis included an additional 2 538 874 patient-days and 1751 HO-CDI cases, with a median (IQR) HO-CDI incidence of 5.9 (2.7-8.9) cases per 10 000 patient-days, from participating hospitals 24 months before the intervention. In the first analysis, intervention sites had a steeper decline in HO-CDI incidence over time relative to controls (yearly incidence rate ratio [IRR], 0.79 [95% CI, 0.67-0.94]; P = .01), but the decline was not temporally associated with study participation. In the second analysis, HO-CDI incidence was declining in participating hospitals before the intervention, and the rate of decline did not change during the intervention. The degree to which hospitals implemented the Framework was associated with steeper declines in HO-CDI incidence (yearly IRR, 0.95 [95% CI, 0.90-0.99]; P = .03). CONCLUSIONS AND RELEVANCE: In this quality improvement study of a regional hospital network, implementation of the Framework was not temporally associated with declining HO-CDI incidence. Further study of the effectiveness of multimodal prevention measures for controlling HO-CDI is warranted. |
Influenza vaccination accuracy among adults: Self-report compared with electronic health record data
Daley MF , Reifler LM , Shoup JA , Glanz JM , Lewin BJ , Klein NP , Kharbanda EO , McLean HQ , Hambidge SJ , Nelson JC , Naleway AL , Weintraub ES , McNeil MM , Razzaghi H , Singleton JA . Vaccine 2024 OBJECTIVE: To assess the validity of electronic health record (EHR)-based influenza vaccination data among adults in a multistate network. METHODS: Following the 2018-2019 and 2019-2020 influenza seasons, surveys were conducted among a random sample of adults who did or did not appear influenza-vaccinated (per EHR data) during the influenza season. Participants were asked to report their influenza vaccination status; self-report was treated as the criterion standard. Results were combined across survey years. RESULTS: Survey response rate was 44.7% (777 of 1740) for the 2018-2019 influenza season and 40.5% (505 of 1246) for the 2019-2020 influenza season. The sensitivity of EHR-based influenza vaccination data was 75.0% (95% confidence interval [CI] 68.1, 81.1), specificity 98.4% (95% CI 92.9, 99.9), and negative predictive value 73.9% (95% CI 68.0, 79.3). CONCLUSIONS: In a multistate research network across two recent influenza seasons, there was moderate concordance between EHR-based vaccination data and self-report. |
Bartonella quintana Endocarditis: A Systematic Review of Individual Cases
Boodman C , Gupta N , Nelson CA , van Griensven J . Clin Infect Dis 2024 78 (3) 554-561 BACKGROUND: Bartonella quintana is a louse-borne bacterium that remains a neglected cause of endocarditis in low-resource settings. Our understanding of risk factors, clinical manifestations, and treatment of B. quintana endocarditis are biased by older studies from high-income countries. METHODS: We searched Pubmed Central, Medline, Scopus, Embase, EBSCO (CABI) Global Health, Web of Science and international trial registers for articles published before March 2023 with terms related to Bartonella quintana endocarditis. We included articles containing case-level information on B. quintana endocarditis and extracted data related to patient demographics, clinical features, diagnostic testing, treatment, and outcome. RESULTS: A total of 975 records were identified, of which 569 duplicates were removed prior to screening. In total, 84 articles were eligible for inclusion, describing a total of 167 cases. Infections were acquired in 40 different countries; 62 cases (37.1%) were acquired in low- and middle-income countries (LMICs). Disproportionately more female and pediatric patients were from LMICs. More patients presented with heart failure (n = 70/167 [41.9%]) than fever (n = 65/167 [38.9%]). Mean time from symptom onset to presentation was 5.1 months. Also, 25.7% of cases (n = 43/167) were associated with embolization, most commonly to the spleen and brain; 65.5% of antimicrobial regimens included doxycycline. The vast majority of cases underwent valve replacement surgery (n = 154/167, [98.0%]). Overall case fatality rate was 9.6% (n = 16/167). CONCLUSIONS: B. quintana endocarditis has a global distribution, and long delays between symptom onset and presentation frequently occur. Improved clinician education and diagnostic capacity are needed to screen at-risk populations and identify infection before endocarditis develops. |
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