Last data update: Dec 02, 2024. (Total: 48272 publications since 2009)
Records 1-30 (of 35 Records) |
Query Trace: Blum L[original query] |
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Women with blood pressure improvement in the well-integrated screening and evaluation for women across the nation program by race and ethnicity, 2014-2018
Vaid I , Blum E , Nwaise I . J Womens Health (Larchmt) 2024 Background: The Well-Integrated Screening and Evaluation for Women Across the Nation (WISEWOMAN) program aims to improve the cardiovascular health of women aged 40-64 years with low incomes, and who are uninsured or underinsured. The objective is to examine WISEWOMAN participants with hypertension who had high blood pressure (BP) improvement from January 2014 to June 2018, by race and ethnicity. Also examined was participation in WISEWOMAN Healthy Behavior Support Services (HBSS) and adherence to antihypertensive medication. Materials and Methods: WISEWOMAN data from January 2014 to June 2018 were analyzed by race and ethnicity. BP improvement was defined as at least a 5 mm Hg decrease in systolic or diastolic BP values from baseline screening to rescreening. The prevalence of HBSS participation and antihypertensive medication adherence were calculated among hypertensive women with BP improvement. Results: Approximately 64.2% (4,984) of WISEWOMAN participants with hypertension had at least a 5 mm Hg BP improvement. These improvements were consistent across each race and ethnicity (p = 0.56) in the study. Nearly 70% of women who had BP improvement attended at least one HBSS. Hispanic women (80.1%) had the highest HBSS attendance percentage compared to non-Hispanic Black women (64.1%) and non-Hispanic White women (63.8%; p < 0.001). About 80% of women with BP improvement reported being adherent to antihypertensive medication in the previous 7 days. Conclusions: The proportion of women achieving BP improvement in the WISEWOMAN program was consistent across race and ethnicity. In addition, women with BP improvement reported adherence to antihypertensive medication and participation in HBSS. |
Excess burden of poverty and hypertension, by race and ethnicity, on the prevalence of cardiovascular disease
Sells ML , Blum E , Perry GS , Eke P , Presley-Cantrell L . Prev Chronic Dis 2023 20 E109 INTRODUCTION: Cardiovascular disease (CVD) is the leading cause of death in the United States. Certain demographic characteristics are associated with disparities in CVD and its risk factors, which may interact with specific social determinants of health (SDOH). We examined the association of a single SDOH (ie, poverty level) with diagnosed CVD morbidity and the joint influence of poverty and hypertension on the prevalence of CVD morbidity among non-Hispanic Black, non-Hispanic White, and Hispanic people aged 30 years or older. METHODS: We used data from the National Health and Nutrition Examination Survey collected during 1999 to 2018. We assessed the prevalence of diagnosed CVD morbidity (eg, self-reported coronary heart disease, angina, myocardial infarction, or stroke) by using a Poisson family with a log link regression model. We calculated the additive interaction of poverty level with hypertension on diagnosed CVD morbidity for each race and ethnicity. RESULTS: We found excess CVD morbidity among non-Hispanic Black and Hispanic people experiencing poverty and diagnosed with hypertension compared with their non-Hispanic White counterparts. Multivariate analysis found a higher prevalence of CVD among participants of all races and ethnicities who were experiencing poverty and among non-Hispanic White people who had less than a college education. In addition, age, hypertension, poverty, smoking, and weight were significant predictors of the prevalence of CVD morbidity among all racial and ethnic groups. CONCLUSION: Changes to interventions, policies, and research may be needed to address the effect of key indicators of health disparities and specific SDOH, such as poverty level, that intersect with hypertension and contribute to excess CVD morbidity among people of some racial and ethnic groups, particularly non-Hispanic Black and Hispanic populations. |
A mixed methods assessment of knowledge, attitudes and practices related to aflatoxin contamination and exposure among caregivers of children under five years in Western Kenya
Awuor A , Wambura G , Ngere I , Hunsperger E , Onyango C , Bigogo G , Blum LS , Munyua P , Njenga MK , Widdowson MA . Public Health Nutr 2023 26 (12) 1-29 OBJECTIVE: Identifying factors that may influence aflatoxin exposure in children under five years of age living in farming households in western Kenya. DESIGN: We used a mixed methods design. The quantitative component entailed serial cross-sectional interviews in 250 farming households to examine crop processing and conservation practices, household food storage and consumption, and local understandings of aflatoxins. Qualitative data collection included focus group discussions (N=7) and key informant interviews (N=13) to explore explanations of harvesting and post-harvesting techniques and perceptions of crop spoilage. SETTING: The study was carried out in Asembo, a rural community where high rates of child stunting exist. PARTICIPANTS: A total of 250 female primary caregivers of children under five years of age and 13 experts in farming and food management participated. RESULTS: Study results showed that from a young age, children routinely ate maize-based dishes. Economic constraints and changing environmental patterns guided the application of sub-optimal crop practices involving early harvest, poor drying, mixing spoiled with good cereals, and storing cereals in polypropylene bags in confined quarters occupied by humans and livestock, raising risks of aflatoxin contamination. Most (80%) smallholder farmers were unaware of aflatoxins and their harmful economic and health consequences. CONCLUSIONS: Young children living in subsistence farming households may be at risk of exposure to aflatoxins and consequent ill health and stunting. Sustained efforts to increase awareness of the risks of aflatoxins and control measures among subsistence farmers could help to mitigate practices that raise exposure. |
Selective and cascade reporting of antimicrobial susceptibility testing results and its impact on antimicrobial resistance surveillance-National Healthcare Safety Network, April 2020 to March 2021
Wu H , Lutgring JD , McDonald LC , Webb A , Fields V , Blum L , Mojica M , Edwards J , Soe MM , Pollock DA . Microbiol Spectr 2023 11 (2) e0164622 Selective or cascade reporting (SR/CR) of antimicrobial susceptibility testing (AST) results is a strategy for antimicrobial stewardship. SR/CR is often achieved by suppressing AST results of secondary drugs in electronic laboratory reports. We assessed the extent of SR/CR and its impact on cumulative antibiograms (CAs) in a large cohort of U.S. hospitals submitting AST data to the CDC's National Healthcare Safety Network (NHSN) through electronic data exchange. The NHSN calls for hospitals to extract AST data from their electronic systems. We analyzed the AST reported for Escherichia coli (blood and urine) and Staphylococcus aureus (blood and lower respiratory tract [LRT]) isolates from April 2020 to March 2021, used AST reporting patterns to assign SR/CR reporting status for hospitals, and compared their CAs. Sensitivity analyses were done to account for those potentially extracted complete data. At least 35% and 41% of the hospitals had AST data that were suppressed in more than 20% blood isolates for E. coli and S. aureus isolates, respectively. At least 63% (blood) and 50% (urine) routinely reported ciprofloxacin or levofloxacin for E. coli isolates; and 60% (blood) and 59% (LRT) routinely reported vancomycin for S. aureus isolates. The distribution of CAs for many agents differed between high SR/CR and low- or non-SR/CR hospitals. Hospitals struggled to obtain complete AST data through electronic data exchange because of data suppression. Use of SR/CR can bias CAs if incomplete data are used. Technical solutions are needed for extracting complete AST results for public health surveillance. IMPORTANCE This study is the first to assess the extent of using selective and/or cascade antimicrobial susceptibility reporting for antimicrobial stewardship among U.S. hospitals and its impact on cumulative antibiograms in the context of electronic data exchange for national antimicrobial resistance surveillance. |
Rapid Evaluations of Telehealth Strategies to Address Hypertension: A Mixed-Methods Exploration at Two US Health Systems During the COVID-19 Pandemic.
Sreedhara M , Suvada K , Bostic M , Scott A , Blum E , Jordan J , Beasley KL . Prev Chronic Dis 2022 19 E81 Telehealth is a promising intervention for hypertension management and control and was rapidly adopted by health systems to ensure continuity of care during the COVID-19 pandemic. Rapid evaluations of telehealth strategies at 2 US health systems explored how telehealth affected health care access and blood pressure outcomes among populations disproportionately affected by hypertension. Both health systems implemented telehealth strategies to maintain continuity of health care services during the COVID-19 pandemic. The evaluations used a mixed-method approach; qualitative interviews were conducted with key staff, and quantitative analyses were performed on patient electronic health record data. Both health systems exhibited similar trends in telehealth use, which allowed for continued access to health care for some patients but hindered other patients who had limited access to the internet or the equipment needed. Telehealth provides opportunities for blood pressure control and management. Further evaluation is needed to understand the role of broadband internet access as a social determinant of health and its impact on equitable patient access to health care. |
Smoking cessation efforts among WISEWOMAN program participants, 2014-2018
Vaid I , Blum E , Ahmed K . J Womens Health (Larchmt) 2022 31 (7) 911-916 Smoking is a preventable risk factor for cardiovascular disease (CVD), indicating the importance of smoking cessation. The Centers for Disease Control and Prevention's Well-Integrated Screening and Evaluation for WOMen Across the Nation (WISEWOMAN) Program funded 21 recipients to provide preventative health services, including healthy behavior support services, to low-income, uninsured, or underinsured women, between 40 to 64 years of age, aimed at lowering CVD risk for women from January 2014 to June 2018. This article explores WISEWOMAN's smoking prevalence and smoking cessation efforts. Analyses were conducted to assess smoking status and other CVD risk factors among 71,671 unique women from all 21 WISEWOMAN funded recipients. Information on CVD risk factors, including smoking status, were collected. Women who were identified as currently smoking during their initial visit were referred to smoking cessation services and their smoking status was revisited during their rescreening. The overall smoking cessation prevalence was 16.9% during the funding cycle. This small increase from the previous iteration of WISEWOMAN (14.9%), supports WISEWOMAN's continued emphasis on smoking cessation through community-clinical linkages. The distribution of smoking cessation did vary by race and ethnicity (p < 0.001). Hispanic women had a higher smoking cessation (38.1%) compared to non-Hispanic American Indian/Alaska Native, non-Hispanic Black, and non-Hispanic White women (17.4%, 15.1%, and 13.7% respectively). In the next iteration of the WISEWOMAN Program, it is anticipated that continued emphasis will be placed on achieving health equity among women who smoke, to reduce CVD risk. |
Medical follow-up received by women with blood pressure alerts in the WISEWOMAN program by race and ethnicity, 2014-2018
Nwaise I , Vaid I , Blum E . J Womens Health (Larchmt) 2022 31 (9) 1353-1357 Background: Hypertension is a preventable risk factor for heart disease and stroke. Immediate reduction in blood pressure (BP) is necessary for a person with dangerously high BP to prevent injuries related to heart disease and stroke. Differences in the prevalence of hypertension and dangerously high BP (BP alerts) and the distribution of medical follow-ups were examined by race and ethnicity among participants in the Well-Integrated Screening and Evaluation for WOMen Across the Nation (WISEWOMAN) program. Materials and Methods: Data (January 2014 through June 2018) were used to identify women, aged 40-64 years, with hypertension at their first WISEWOMAN screening. Women with BP alerts were identified as having an average systolic BP >180 mm Hg or diastolic BP >110 mm Hg at WISEWOMAN baseline screening or rescreening. CDC's WISEWOMAN program is a public health practice program and does not conduct human subject research. Results: Among 65,189 WISEWOMAN participants, 25,098 (38.5%) women had hypertension and 586 (2.3%) of those women had BP alerts. There were significant differences among Hispanic, non-Hispanic black (NHB), and non-Hispanic white (NHW) women in the prevalence of hypertension (26.5%, 67.1%, and 40.2%, respectively, p < 0.001) and BP alerts (1.7%, 3.4%, and 2.1%, respectively, p < 0.001). Among women with BP alerts, 74.7% received a medical follow-up within 7 days and 12.4% received a medical follow-up after 7 days. There were no significant differences in the percentage of women with BP alerts who received a follow-up within 7 days among Hispanic, NHB, and NHW women (71.1%, 77.1%, and 74.4%, respectively, p = 0.085). Conclusions: BP alerts occurred in 2.3% of the WISEWOMAN hypertensive population, and approximately three in four women with BP alerts, regardless of race and ethnicity, received timely follow-up care within 7 days. |
Progressive, Long-Term Hearing Loss in Congenital CMV Disease After Ganciclovir Therapy
Lanzieri TM , Caviness AC , Blum P , Demmler-Harrison G . J Pediatric Infect Dis Soc 2021 11 (1) 16-23 BACKGROUND: Long-term hearing outcomes among children with symptomatic congenital cytomegalovirus (CMV) disease who received 6-week ganciclovir therapy early in life are unknown. METHODS: Longitudinal study of 76 children with symptomatic congenital CMV disease, born 1983-2005, who were categorized into three groups: group A treated with ganciclovir; group B untreated who had microcephaly, chorioretinitis, or sensorineural hearing loss (SNHL; ≥25 dB) diagnosed in the first month of life (congenital); and group C untreated who did not meet criteria for group B. RESULTS: Patients in groups A (n = 17), B (n = 27), and C (n = 32) were followed to median age of 13, 11, and 13 years, respectively. In group A, patients received ganciclovir for median of 40 (range, 11-63) days; 7 (41%) had grade 3 or 4 neutropenia. Congenital SNHL was diagnosed in 11 (65%) patients in group A, 15 (56%) in group B, and none in group C. Early-onset SNHL was diagnosed between ages ≥1-12 months in an additional 4 (24%), 6 (22%), and 8 (25%) patients in groups A, B, and C, respectively. By the end of follow-up, 12 (71%), 16 (59%), and 7 (22%) of patients in groups A, B, and C, respectively, had severe (>70 dB) SNHL in the better-hearing ear. CONCLUSIONS: In this study, most patients with symptomatic congenital CMV disease and congenital or early-onset SNHL eventually developed hearing loss severe enough to have been potential candidates for cochlear implantation, with or without 6-week ganciclovir therapy. Understanding long-term hearing outcomes of patients treated with 6-month oral valganciclovir (current standard of care) is needed. |
Characteristics and Risk Factors of Hospitalized and Nonhospitalized COVID-19 Patients, Atlanta, Georgia, USA, March-April 2020.
Pettrone K , Burnett E , Link-Gelles R , Haight SC , Schrodt C , England L , Gomes DJ , Shamout M , O'Laughlin K , Kimball A , Blau EF , Ladva CN , Szablewski CM , Tobin-D'Angelo M , Oosmanally N , Drenzek C , Browning SD , Bruce BB , da Silva J , Gold JAW , Jackson BR , Morris SB , Natarajan P , Fanfair RN , Patel PR , Rogers-Brown J , Rossow J , Wong KK , Murphy DJ , Blum JM , Hollberg J , Lefkove B , Brown FW , Shimabukuro T , Midgley CM , Tate JE , Killerby ME . Emerg Infect Dis 2021 27 (4) 1164-1168 We compared the characteristics of hospitalized and nonhospitalized patients who had coronavirus disease in Atlanta, Georgia, USA. We found that risk for hospitalization increased with a patient's age and number of concurrent conditions. We also found a potential association between hospitalization and high hemoglobin A1c levels in persons with diabetes. |
COVID-19 Clinical Phenotypes: Presentation and Temporal Progression of Disease in a Cohort of Hospitalized Adults in Georgia, United States.
da Silva JF , Hernandez-Romieu AC , Browning SD , Bruce BB , Natarajan P , Morris SB , Gold JAW , Neblett Fanfair R , Rogers-Brown J , Rossow J , Szablewski CM , Oosmanally N , D'Angelo MT , Drenzek C , Murphy DJ , Hollberg J , Blum JM , Jansen R , Wright DW , Sewell W , Owens J , Lefkove B , Brown FW , Burton DC , Uyeki TM , Patel PR , Jackson BR , Wong KK . Open Forum Infect Dis 2021 8 (1) ofaa596 BACKGROUND: The epidemiological features and outcomes of hospitalized adults with coronavirus disease 2019 (COVID-19) have been described; however, the temporal progression and medical complications of disease among hospitalized patients require further study. Detailed descriptions of the natural history of COVID-19 among hospitalized patients are paramount to optimize health care resource utilization, and the detection of different clinical phenotypes may allow tailored clinical management strategies. METHODS: This was a retrospective cohort study of 305 adult patients hospitalized with COVID-19 in 8 academic and community hospitals. Patient characteristics included demographics, comorbidities, medication use, medical complications, intensive care utilization, and longitudinal vital sign and laboratory test values. We examined laboratory and vital sign trends by mortality status and length of stay. To identify clinical phenotypes, we calculated Gower's dissimilarity matrix between each patient's clinical characteristics and clustered similar patients using the partitioning around medoids algorithm. RESULTS: One phenotype of 6 identified was characterized by high mortality (49%), older age, male sex, elevated inflammatory markers, high prevalence of cardiovascular disease, and shock. Patients with this severe phenotype had significantly elevated peak C-reactive protein creatinine, D-dimer, and white blood cell count and lower minimum lymphocyte count compared with other phenotypes (P < .01, all comparisons). CONCLUSIONS: Among a cohort of hospitalized adults, we identified a severe phenotype of COVID-19 based on the characteristics of its clinical course and poor prognosis. These findings need to be validated in other cohorts, as improved understanding of clinical phenotypes and risk factors for their development could help inform prognosis and tailored clinical management for COVID-19. |
"Making the right decisions: Adapting to emerging needs": The 7th Annual Meeting of the Southeastern Association of Shared Resources, Atlanta, GA, USA, June 12-14, 2019
Dahlman KB , Bagarozzi D , Bagchi P , Blum D , Boukli NM , Colton-Lee F , Constable S , Seagroves TN , Somasundaram T . J Biomol Tech 2020 31 (4) 165-167 One hundred and nine shared resource directors, managers, administrators, and staff from 26 academic, government, or nonprofit institutions and 24 corporate partners descended upon Atlanta, Georgia, to attend the seventh Annual Meeting of the Southeastern Association of Shared Resources (SEASR) at the Emory Conference Center Hotel from June 12 to 14, 2019. Due to the overwhelming interest and response from SEASR sponsors, meeting registration was complimentary for all noncorporate attendees. This one-and-a-half-day meeting presented a combination of scientific, administrative, and networking sessions that are summarized herein. |
Predictors at admission of mechanical ventilation and death in an observational cohort of adults hospitalized with COVID-19.
Jackson BR , Gold JAW , Natarajan P , Rossow J , Neblett Fanfair R , da Silva J , Wong KK , Browning SD , Bamrah Morris S , Rogers-Brown J , Hernandez-Romieu AC , Szablewski CM , Oosmanally N , Tobin-D'Angelo M , Drenzek C , Murphy DJ , Hollberg J , Blum JM , Jansen R , Wright DW , SeweSll WM , Owens JD , Lefkove B , Brown FW , Burton DC , Uyeki TM , Bialek SR , Patel PR , Bruce BB . Clin Infect Dis 2020 73 (11) e4141-e4151 BACKGROUND: Coronavirus disease (COVID-19) can cause severe illness and death. Predictors of poor outcome collected on hospital admission may inform clinical and public health decisions. METHODS: We conducted a retrospective observational cohort investigation of 297 adults admitted to eight academic and community hospitals in Georgia, United States, during March 2020. Using standardized medical record abstraction, we collected data on predictors including admission demographics, underlying medical conditions, outpatient antihypertensive medications, recorded symptoms, vital signs, radiographic findings, and laboratory values. We used random forest models to calculate adjusted odds ratios (aORs) and 95% confidence intervals (CI) for predictors of invasive mechanical ventilation (IMV) and death. RESULTS: Compared with age <45 years, ages 65-74 years and ≥75 years were predictors of IMV (aOR 3.12, CI 1.47-6.60; aOR 2.79, CI 1.23-6.33) and the strongest predictors for death (aOR 12.92, CI 3.26-51.25; aOR 18.06, CI 4.43-73.63). Comorbidities associated with death (aORs from 2.4 to 3.8, p <0.05) included end-stage renal disease, coronary artery disease, and neurologic disorders, but not pulmonary disease, immunocompromise, or hypertension. Pre-hospital use vs. non-use of angiotensin receptor blockers (aOR 2.02, CI 1.03-3.96) and dihydropyridine calcium channel blockers (aOR 1.91, CI 1.03-3.55) were associated with death. CONCLUSIONS: After adjustment for patient and clinical characteristics, older age was the strongest predictor of death, exceeding comorbidities, abnormal vital signs, and laboratory test abnormalities. That coronary artery disease, but not chronic lung disease, was associated with death among hospitalized patients warrants further investigation, as do associations between certain antihypertensive medications and death. |
Characteristics Associated with Hospitalization Among Patients with COVID-19 - Metropolitan Atlanta, Georgia, March-April 2020.
Killerby ME , Link-Gelles R , Haight SC , Schrodt CA , England L , Gomes DJ , Shamout M , Pettrone K , O'Laughlin K , Kimball A , Blau EF , Burnett E , Ladva CN , Szablewski CM , Tobin-D'Angelo M , Oosmanally N , Drenzek C , Murphy DJ , Blum JM , Hollberg J , Lefkove B , Brown FW , Shimabukuro T , Midgley CM , Tate JE , CDC COVID-19 Response Clinical Team , Browning Sean D , Bruce Beau B , da Silva Juliana , Gold Jeremy AW , Jackson Brendan R , Bamrah Morris Sapna , Natarajan Pavithra , Neblett Fanfair Robyn , Patel Priti R , Rogers-Brown Jessica , Rossow John , Wong Karen K . MMWR Morb Mortal Wkly Rep 2020 69 (25) 790-794 The first reported U.S. case of coronavirus disease 2019 (COVID-19) was detected in January 2020 (1). As of June 15, 2020, approximately 2 million cases and 115,000 COVID-19-associated deaths have been reported in the United States.* Reports of U.S. patients hospitalized with SARS-CoV-2 infection (the virus that causes COVID-19) describe high proportions of older, male, and black persons (2-4). Similarly, when comparing hospitalized patients with catchment area populations or nonhospitalized COVID-19 patients, high proportions have underlying conditions, including diabetes mellitus, hypertension, obesity, cardiovascular disease, chronic kidney disease, or chronic respiratory disease (3,4). For this report, data were abstracted from the medical records of 220 hospitalized and 311 nonhospitalized patients aged >/=18 years with laboratory-confirmed COVID-19 from six acute care hospitals and associated outpatient clinics in metropolitan Atlanta, Georgia. Multivariable analyses were performed to identify patient characteristics associated with hospitalization. The following characteristics were independently associated with hospitalization: age >/=65 years (adjusted odds ratio [aOR] = 3.4), black race (aOR = 3.2), having diabetes mellitus (aOR = 3.1), lack of insurance (aOR = 2.8), male sex (aOR = 2.4), smoking (aOR = 2.3), and obesity (aOR = 1.9). Infection with SARS-CoV-2 can lead to severe outcomes, including death, and measures to protect persons from infection, such as staying at home, social distancing (5), and awareness and management of underlying conditions should be emphasized for those at highest risk for hospitalization with COVID-19. Measures that prevent the spread of infection to others, such as wearing cloth face coverings (6), should be used whenever possible to protect groups at high risk. Potential barriers to the ability to adhere to these measures need to be addressed. |
Characteristics and Clinical Outcomes of Adult Patients Hospitalized with COVID-19 - Georgia, March 2020.
Gold JAW , Wong KK , Szablewski CM , Patel PR , Rossow J , da Silva J , Natarajan P , Morris SB , Fanfair RN , Rogers-Brown J , Bruce BB , Browning SD , Hernandez-Romieu AC , Furukawa NW , Kang M , Evans ME , Oosmanally N , Tobin-D'Angelo M , Drenzek C , Murphy DJ , Hollberg J , Blum JM , Jansen R , Wright DW , Sewell WM3rd , Owens JD , Lefkove B , Brown FW , Burton DC , Uyeki TM , Bialek SR , Jackson BR . MMWR Morb Mortal Wkly Rep 2020 69 (18) 545-550 SARS-CoV-2, the novel coronavirus that causes coronavirus disease 2019 (COVID-19), was first detected in the United States during January 2020 (1). Since then, >980,000 cases have been reported in the United States, including >55,000 associated deaths as of April 28, 2020 (2). Detailed data on demographic characteristics, underlying medical conditions, and clinical outcomes for persons hospitalized with COVID-19 are needed to inform prevention strategies and community-specific intervention messages. For this report, CDC, the Georgia Department of Public Health, and eight Georgia hospitals (seven in metropolitan Atlanta and one in southern Georgia) summarized medical record-abstracted data for hospitalized adult patients with laboratory-confirmed* COVID-19 who were admitted during March 2020. Among 305 hospitalized patients with COVID-19, 61.6% were aged <65 years, 50.5% were female, and 83.2% with known race/ethnicity were non-Hispanic black (black). Over a quarter of patients (26.2%) did not have conditions thought to put them at higher risk for severe disease, including being aged >/=65 years. The proportion of hospitalized patients who were black was higher than expected based on overall hospital admissions. In an adjusted time-to-event analysis, black patients were not more likely than were nonblack patients to receive invasive mechanical ventilation(dagger) (IMV) or to die during hospitalization (hazard ratio [HR] = 0.63; 95% confidence interval [CI] = 0.35-1.13). Given the overrepresentation of black patients within this hospitalized cohort, it is important for public health officials to ensure that prevention activities prioritize communities and racial/ethnic groups most affected by COVID-19. Clinicians and public officials should be aware that all adults, regardless of underlying conditions or age, are at risk for serious illness from COVID-19. |
Middle ear effusion in children with congenital cytomegalovirus infection
Chung W , Leung J , Lanzieri TM , Blum P , Demmler-Harrison G . Pediatr Infect Dis J 2019 39 (4) 273-276 BACKGROUND: Sensorineural hearing loss (SNHL) is well described in children with congenital cytomegalovirus (CMV) infection, but limited data are available on middle ear effusion (MEE) occurrence in this population. We assessed the prevalence of MEE and the degree of transient hearing change associated with MEE among children with congenital CMV infection. METHODS: Children with congenital CMV infection enrolled in a longitudinal study received hearing and tympanometric testing during scheduled follow-up visits annually up to 6 years of age. We used a generalized linear mixed-effect logistic regression model to compare the odds of MEE, defined as type B tympanogram (normal ear canal volume with little tympanic membrane movement) among patients categorized as symptomatic or asymptomatic based on the presence of congenital CMV-associated signs in the newborn period. RESULTS: Forty-four (61%) of 72 symptomatic and 24 (28%) of 87 asymptomatic patients had >/=1 visit with MEE. After controlling for the number of visits, symptomatic patients had significantly higher odds of MEE (odds ratio: 2.09; 95% confidence interval: 1.39-3.14) than asymptomatic patients. Transient hearing decrease associated with a type B tympanogram ranged from 10 to 40 dB, as measured by audiometric air-bone gap in 11 patients. CONCLUSIONS: Among children with congenital CMV, MEE can result in transient hearing decrease, which can reduce the efficacy of a hearing aid in those with SNHL. It is warranted that children with congenital CMV infection and SNHL receive routine audiologic and tympanometric testing to better manage hearing aid amplification levels. |
Meeting report: Convening on the influenza human viral challenge model for universal influenza vaccines, Part 1: Value; challenge virus selection; regulatory, industry and ethical considerations; increasing standardization, access and capacity
Innis BL , Berlanda Scorza F , Blum JS , Jain VK , Older Aguilar A , Post DJ , Roberts PC , Wairagkar N , White J , Bresee J . Vaccine 2019 37 (35) 4823-4829 In response to global interest in the development of a universal influenza vaccine, the Bill & Melinda Gates Foundation, PATH, and the Global Funders Consortium for Universal Influenza Vaccine Development convened a meeting of experts (London, UK, May 2018) to assess the role of a standardized controlled human influenza virus infection model (CHIVIM) towards the development of novel influenza vaccine candidates. This report (in two parts) summarizes those discussions and offers consensus recommendations. This article (Part 1) covers challenge virus selection, regulatory and ethical considerations, and issues concerning standardization, access, and capacity. Part 2 covers specific methodologic considerations. Current methods for influenza vaccine development and licensure require large costly field trials. The CHIVIM requires fewer subjects and the controlled setting allows for better understanding of influenza transmission and host immunogenicity. The CHIVIM can be used to identify immune predictors of disease for at-risk populations and to measure efficacy of potential vaccines for further development. Limitations to the CHIVIM include lack of standardization, limited access to challenge viruses and assays, lack of consensus regarding role of the CHIVIM in vaccine development pathway, and concerns regarding risk to study participants and community. To address these issues, the panel of experts recommended that WHO and other key stakeholders provide guidance on standardization, challenge virus selection, and risk management. A common repository of well-characterized challenge viruses, harmonized protocols, and standardized assays should be made available to researchers. A network of research institutions performing CHIVIM trials should be created, and more study sites are needed to increase capacity. Experts agreed that a research network of institutions working with a standardized CHIVIM could contribute important data to support more rapid development and licensure of novel vaccines capable of providing long-lasting protection against seasonal and pandemic influenza strains. |
Convening on the influenza human viral challenge model for universal influenza vaccines, Part 2: Methodologic considerations
Innis BL , Scorza FB , Blum JS , Jain VK , Aguilar AO , Post DJ , Roberts PC , Wairagkar N , White J , Bresee J . Vaccine 2019 37 (35) 4830-4834 In response to global interest in the development of a universal influenza vaccine, the Bill & Melinda Gates Foundation, PATH, and the Global Funders Consortium for Universal Influenza Vaccine Development convened a meeting of experts (London, UK, May 2018) to assess the role of a standardized controlled human influenza virus infection model (CHIVIM) towards the development of novel influenza vaccine candidates. This report (in two parts) summarizes those discussions and offers consensus recommendations. Part 1 covers challenge virus selection, regulatory and ethical considerations, and issues concerning standardization, access, and capacity. This article (Part 2) summarizes the discussion and recommendations concerning CHIVIM methods. The panelists identified an overall need for increased standardization of CHIVIM trials, in order to produce comparable results that can support universal vaccine licensure. Areas of discussion included study participant selection and screening, route of exposure and dose, devices for administering challenge, rescue therapy, protection of participants and institutions, clinical outcome measures, and other considerations. The panelists agreed upon specific recommendations to improve the standardization and usefulness of the model for vaccine development. Experts agreed that a research network of institutions working with a standardized CHIVIM could contribute important data to support more rapid development and licensure of novel vaccines capable of providing long-lasting protection against seasonal and pandemic influenza strains. |
Monitoring opioid addiction and treatment: Do you know if your population is engaged
Prieto JT , McEwen D , Davidson AJ , Al-Tayyib A , Gawenus L , Papagari Sangareddy SR , Blum J , Foldy S , Shlay JC . Drug Alcohol Depend 2019 202 56-60 BACKGROUND: Assessment of people affected by opioid-related problems and those receiving care is challenging due to lack of common definitions and scattered information. We sought to fill this gap by demonstrating a method to describe a continuum of opioid addiction care in a large, public safety-net institution. METHODS: Using 2017 clinical and administrative data from Denver Health (DH), we created operational definitions for opioid use disorder (OUD), opioid misuse (OM), and opioid poisoning (OP). Six stages along a continuum of patient engagement in opioid addiction care were developed, and operational definitions assigned patients to stages for a specific time point of analysis. National data was used to estimate the Denver population affected by OUD, OM and OP. RESULTS: In 2017, an estimated 6688 people aged >/=12 years were affected by OUD, OM, or OP in Denver; 48.4% (3238/6688) were medically diagnosed in DH. Of those, 32.5% (1051/3238) were in the medication assisted treatment stage, and, of those, 59.8% (629/1051) in the adhered to treatment stage. Among that latter group, 78.4% (493/629) adhered at least 90 days and 52.3% (329/629) for more than one year. Among patients who received medication assisted treatment, less than one third (31.3%, 329/1051) were adherent for more than one year. CONCLUSIONS: A health-system level view of the continuum of opioid addiction care identified improvement opportunities to better monitor accuracy of diagnosis, treatment capacity, and effectiveness of patient engagement. Applied longitudinally at local, state and national levels, the model could better synergize responses to the opioid crisis. |
Risk factors for group A streptococcus colonization during an outbreak among people experiencing homelessness in Anchorage, Alaska, 2017
Adebanjo T , Mosites E , Van Beneden CA , Onukwube J , Blum M , Harper M , Rudolph K , Frick A , Castrodale L , McLaughlin J , Bruce MG , Gounder P . Clin Infect Dis 2018 67 (11) 1784-1787 We identified risk factors for any emm-type group A streptococcal (GAS) colonization while investigating an invasive emm26.3 GAS outbreak among people experiencing homelessness in Alaska. Risk factors included upper extremity skin breakdown, sleeping outdoors, sharing blankets, and infrequent tooth brushing. Our results may help guide control efforts in future outbreaks. |
Hearing trajectory in children with congenital cytomegalovirus infection
Lanzieri TM , Chung W , Leung J , Caviness AC , Baumgardner JL , Blum P , Bialek SR , Demmler-Harrison G . Otolaryngol Head Neck Surg 2018 158 (4) 194599818758247 Objectives To compare hearing trajectories among children with symptomatic and asymptomatic congenital cytomegalovirus infection through age 18 years and to identify brain abnormalities associated with sensorineural hearing loss (SNHL) in asymptomatic case patients. Study Design Longitudinal prospective cohort study. Setting Tertiary medical center. Subjects and Methods The study included 96 case patients (4 symptomatic and 92 asymptomatic) identified through hospital-based newborn cytomegalovirus screening from 1982 to 1992 and 72 symptomatic case patients identified through referrals from 1993 to 2005. We used growth curve modeling to analyze hearing thresholds (0.5-8 kHz) by ear with increasing age and Cox regression to determine abnormal findings on head computed tomography scan associated with SNHL (hearing threshold >/=25 dB in any audiometric frequency) among asymptomatic case patients. Results Fifty-six (74%) symptomatic and 20 (22%) asymptomatic case patients had SNHL: congenital/early-onset SNHL was diagnosed in 78 (51%) and 10 (5%) ears, respectively, and delayed-onset SNHL in 25 (17%) and 20 (11%) ears; 49 (32%) and 154 (84%) ears had normal hearing. In affected ears, all frequency-specific hearing thresholds worsened with age. Congenital/early-onset SNHL was significantly worse (severe-profound range, >70 dB) than delayed-onset SNHL (mild-moderate range, 26-55 db). Frequency-specific hearing thresholds were significantly different between symptomatic and asymptomatic case patients at 0.5 to 1 kHz but not at higher frequencies (2-8 kHz). Among asymptomatic case patients, white matter lucency was significantly associated with SNHL by age 5 years (hazard ratio, 4.4; 95% CI, 1.3-15.6). Conclusion Congenital/early-onset SNHL frequently resulted in severe to profound loss in symptomatic and asymptomatic case patients. White matter lucency in asymptomatic case patients was significantly associated with SNHL by age 5 years. |
Optimizing delivery of HIV preexposure prophylaxis for women in the United States
Aaron E , Blum C , Seidman D , Hoyt MJ , Simone J , Sullivan M , Smith DK . AIDS Patient Care STDS 2018 32 (1) 16-23 Preexposure prophylaxis (PrEP) is a highly effective HIV prevention method; however, it is underutilized among women who are at risk for acquisition of HIV. Women comprise one in five HIV diagnoses in the United States, and significant racial disparities in new HIV diagnoses persist. The rate of new HIV diagnoses among black and African American women in 2015 was 16 times greater than that of white women. These disparities highlight the importance of HIV prevention strategies for women, including the use of PrEP. PrEP is the first highly effective HIV prevention method available to women that is entirely within their control. However, because so few women who may benefit from PrEP are aware of it, few women's healthcare providers offer PrEP to their patients, PrEP has not yet achieved its potential to reduce HIV infections in women. This article describes individual and systemic barriers for women related to the uptake of PrEP services; explains how providers can identify women at risk for HIV; reviews how to provide PrEP to women; and outlines client-centered models for HIV prevention services. Better access to culturally acceptable and affordable medical and social services may offer support to women for consistent and ongoing use of PrEP. This discussion may be used to inform HIV prevention activities for women and guide interventions to decrease racial/ethnic disparities in rates of HIV infection among US women. |
Rodent-borne Bartonella infection varies according to host species within and among cities
Peterson AC , Ghersi BM , Alda F , Firth C , Frye MJ , Bai Y , Osikowicz LM , Riegel C , Lipkin WI , Kosoy MY , Blum MJ . Ecohealth 2017 14 (4) 771-782 It is becoming increasingly likely that rodents will drive future disease epidemics with the continued expansion of cities worldwide. Though transmission risk is a growing concern, relatively little is known about pathogens carried by urban rats. Here, we assess whether the diversity and prevalence of Bartonella bacteria differ according to the (co)occurrence of rat hosts across New Orleans, LA (NO), where both Norway (Rattus norvegicus) and roof rats (Rattus rattus) are found, relative to New York City (NYC) which only harbors Norway rats. We detected human pathogenic Bartonella species in both NYC and New Orleans rodents. We found that Norway rats in New Orleans harbored a more diverse assemblage of Bartonella than Norway rats in NYC and that Norway rats harbored a more diverse and distinct assemblage of Bartonella compared to roof rats in New Orleans. Additionally, Norway rats were more likely to be infected with Bartonella than roof rats in New Orleans. Flea infestation appears to be an important predictor of Bartonella infection in Norway rats across both cities. These findings illustrate that pathogen infections can be heterogeneous in urban rodents and indicate that further study of host species interactions could clarify variation in spillover risk across cities. |
VP4- and VP7-specific antibodies mediate heterotypic immunity to rotavirus in humans
Nair N , Feng N , Blum LK , Sanyal M , Ding S , Jiang B , Sen A , Morton JM , He XS , Robinson WH , Greenberg HB . Sci Transl Med 2017 9 (395) Human rotaviruses (RVs) are the leading cause of severe diarrhea in young children worldwide. The molecular mechanisms underlying the rapid induction of heterotypic protective immunity to RV, which provides the basis for the efficacy of licensed monovalent RV vaccines, have remained unknown for more than 30 years. We used RV-specific single cell-sorted intestinal B cells from human adults, barcode-based deep sequencing of antibody repertoires, monoclonal antibody expression, and serologic and functional characterization to demonstrate that infection-induced heterotypic immunoglobulins (Igs) primarily directed to VP5*, the stalk region of the RV attachment protein, VP4, are able to mediate heterotypic protective immunity. Heterotypic protective Igs against VP7, the capsid glycoprotein, and VP8*, the cell-binding region of VP4, are also generated after infection; however, our data suggest that homotypic anti-VP7 and non-neutralizing VP8* responses occur more commonly in people. These results indicate that humans can circumvent the extensive serotypic diversity of circulating RV strains by generating frequent heterotypic neutralizing antibody responses to VP7, VP8*, and most often, to VP5* after natural infection. These findings further suggest that recombinant VP5* may represent a useful target for the development of an improved, third-generation, broadly effective RV vaccine and warrants more direct examination. |
Long-term outcomes of children with symptomatic congenital cytomegalovirus disease
Lanzieri TM , Leung J , Caviness AC , Chung W , Flores M , Blum P , Bialek SR , Miller JA , Vinson SS , Turcich MR , Voigt RG , Demmler-Harrison G . J Perinatol 2017 37 (7) 875-880 OBJECTIVE: To assess long-term outcomes of children with symptomatic congenital cytomegalovirus (CMV) disease detected at birth. STUDY DESIGN: We used Cox regression to assess risk factors for intellectual disability (intelligence quotient <70), sensorineural hearing loss (SNHL; hearing level 25 dB in any audiometric frequency) and vision impairment (best corrected visual acuity >20 or based on ophthalmologist report). RESULTS: Among 76 case-patients followed through median age of 13 (range: 0-27) years, 56 (74%) had SNHL, 31 (43%, n=72) had intellectual disability and 18 (27%, n=66) had vision impairment; 28 (43%, n=65) had intellectual disability and SNHL with/without vision impairment. Microcephaly was significantly associated with each of the three outcomes. Tissue destruction and dysplastic growth on head computed tomography scan at birth was significantly associated with intellectual disability and SNHL. CONCLUSION: Infants with symptomatic congenital CMV disease may develop moderate to severe impairments that were associated with presence of microcephaly and brain abnormalities. |
Hearing loss in children with asymptomatic congenital cytomegalovirus infection
Lanzieri TM , Chung W , Flores M , Blum P , Caviness AC , Bialek SR , Grosse SD , Miller JA , Demmler-Harrison G . Pediatrics 2017 139 (3) OBJECTIVES: To assess the prevalence, characteristics, and risk of sensorineural hearing loss (SNHL) in children with congenital cytomegalovirus infection identified through hospital-based newborn screening who were asymptomatic at birth compared with uninfected children. METHODS: We included 92 case-patients and 51 controls assessed by using auditory brainstem response and behavioral audiometry. We used Kaplan-Meier survival analysis to estimate the prevalence of SNHL, defined as ≥25 dB hearing level at any frequency and Cox proportional hazards regression analyses to compare SNHL risk between groups. RESULTS: At age 18 years, SNHL prevalence was 25% (95% confidence interval [CI]: 17%-36%) among case-patients and 8% (95% CI: 3%-22%) in controls (hazard ratio [HR]: 4.0; 95% CI: 1.2-14.5; P = .02). Among children without SNHL by age 5 years, the risk of delayed-onset SNHL was not significantly greater for case-patients than for controls (HR: 1.6; 95% CI: 0.4-6.1; P = .5). Among case-patients, the risk of delayed-onset SNHL was significantly greater among those with unilateral congenital/early-onset hearing loss than those without (HR: 6.9; 95% CI: 2.5-19.1; P < .01). The prevalence of severe to profound bilateral SNHL among case-patients was 2% (95% CI: 1%-9%). CONCLUSIONS: Delayed-onset and progression of SNHL among children with asymptomatic congenital cytomegalovirus infection continued to occur throughout adolescence. However, the risk of developing SNHL after age 5 years among case-patients was not different than in uninfected children. Overall, 2% of case-patients developed SNHL that was severe enough for them to be candidates for cochlear implantation. |
Cross-neutralizing and protective human antibody specificities to poxvirus infections
Gilchuk I , Gilchuk P , Sapparapu G , Lampley R , Singh V , Kose N , Blum DL , Hughes LJ , Satheshkumar PS , Townsend MB , Kondas AV , Reed Z , Weiner Z , Olson VA , Hammarlund E , Raue HP , Slifka MK , Slaughter JC , Graham BS , Edwards KM , Eisenberg RJ , Cohen GH , Joyce S , Crowe JE Jr . Cell 2016 167 (3) 684-694.e9 Monkeypox (MPXV) and cowpox (CPXV) are emerging agents that cause severe human infections on an intermittent basis, and variola virus (VARV) has potential for use as an agent of bioterror. Vaccinia immune globulin (VIG) has been used therapeutically to treat severe orthopoxvirus infections but is in short supply. We generated a large panel of orthopoxvirus-specific human monoclonal antibodies (Abs) from immune subjects to investigate the molecular basis of broadly neutralizing antibody responses for diverse orthopoxviruses. Detailed analysis revealed the principal neutralizing antibody specificities that are cross-reactive for VACV, CPXV, MPXV, and VARV and that are determinants of protection in murine challenge models. Optimal protection following respiratory or systemic infection required a mixture of Abs that targeted several membrane proteins, including proteins on enveloped and mature virion forms of virus. This work reveals orthopoxvirus targets for human Abs that mediate cross-protective immunity and identifies new candidate Ab therapeutic mixtures to replace VIG. |
A new dual-collimation batch reactor for determination of ultraviolet inactivation rate constants for microorganisms in aqueous suspensions
Martin SB Jr , Schauer ES , Blum DH , Kremer PA , Bahnfleth WP , Freihaut JD . J Photochem Photobiol B 2016 162 674-680 We developed, characterized, and tested a new dual-collimation aqueous UV reactor to improve the accuracy and consistency of aqueous k-value determinations. This new system is unique because it collimates UV energy from a single lamp in two opposite directions. The design provides two distinct advantages over traditional single-collimation systems: 1) real-time UV dose (fluence) determination; and 2) simple actinometric determination of a reactor factor that relates measured irradiance levels to actual irradiance levels experienced by the microbial suspension. This reactor factor replaces three of the four typical correction factors required for single-collimation reactors. Using this dual-collimation reactor, Bacillus subtilis spores demonstrated inactivation following the classic multi-hit model with k=0.1471cm2/mJ (with 95% confidence bounds of 0.1426 to 0.1516). |
Incidence of Hansen's disease - United States, 1994-2011
Nolen L , Haberling D , Scollard D , Truman R , Rodriguez-Lainz A , Blum L , Blaney D . MMWR Morb Mortal Wkly Rep 2014 63 (43) 969-972 Hansen's disease (HD), or leprosy, is caused by the bacterium Mycobacterium leprae and is reportable in many states. It is a chronic disease affecting the skin and nerves, commonly presenting as pale or reddish skin patches with diminished sensation. Without treatment, it can progress to a severely debilitating disease with nerve damage, tissue destruction, and functional loss. An important factor in limiting HD morbidity is early diagnosis and prompt initiation of therapy. Because HD is rare, clinicians in the United States are often unfamiliar with it; however, HD continues to cause morbidity in the United States. To better characterize at-risk U.S. populations, HD trends during 1994-2011 were evaluated by reviewing records from the National Hansen's Disease Program (NHDP). When the periods 1994-1996 and 2009-2011 were compared, a decline in the rate for new diagnoses from 0.52 to 0.43 per million was observed. The rate among foreign-born persons decreased from 3.66 to 2.29, whereas the rate among U.S.-born persons was 0.16 in both 1994-1996 and 2009-2011. Delayed diagnosis was more common among foreign-born persons. Clinicians throughout the United States should familiarize themselves with the signs and symptoms of HD and understand that HD can occur in the United States. |
Formative investigation of acceptability of typhoid vaccine during a typhoid fever outbreak in Neno District, Malawi
Blum LS , Dentz H , Chingoli F , Chilima B , Warne T , Lee C , Hyde T , Gindler J , Sejvar J , Mintz ED . Am J Trop Med Hyg 2014 91 (4) 729-37 Typhoid fever affects an estimated 22 million people annually and causes 216,000 deaths worldwide. We conducted an investigation in August and September 2010 to examine the acceptability of typhoid vaccine in Neno District, Malawi where a typhoid outbreak was ongoing. We used qualitative methods, including freelisting exercises, key informant and in-depth interviews, and group discussions. Respondents associated illness with exposure to "bad wind," and transmission was believed to be airborne. Typhoid was considered extremely dangerous because of its rapid spread, the debilitating conditions it produced, the number of related fatalities, and the perception that it was highly contagious. Respondents were skeptical about the effectiveness of water, sanitation, and hygiene (WaSH) interventions. The perceived severity of typhoid and fear of exposure, uncertainty about the effectiveness of WaSH measures, and widespread belief in the efficacy of vaccines in preventing disease resulted in an overwhelming interest in receiving typhoid vaccine during an outbreak. |
Video surveillance captures student hand hygiene behavior, reactivity to observation, and peer influence in Kenyan primary schools
Pickering AJ , Blum AG , Breiman RF , Ram PK , Davis J . PLoS One 2014 9 (3) e92571 BACKGROUND: In-person structured observation is considered the best approach for measuring hand hygiene behavior, yet is expensive, time consuming, and may alter behavior. Video surveillance could be a useful tool for objectively monitoring hand hygiene behavior if validated against current methods. METHODS: Student hand cleaning behavior was monitored with video surveillance and in-person structured observation, both simultaneously and separately, at four primary schools in urban Kenya over a study period of 8 weeks. FINDINGS: Video surveillance and in-person observation captured similar rates of hand cleaning (absolute difference <5%, p = 0.74). Video surveillance documented higher hand cleaning rates (71%) when at least one other person was present at the hand cleaning station, compared to when a student was alone (48%; rate ratio = 1.14 [95% CI 1.01-1.28]). Students increased hand cleaning rates during simultaneous video and in-person monitoring as compared to single-method monitoring, suggesting reactivity to each method of monitoring. This trend was documented at schools receiving a handwashing with soap intervention, but not at schools receiving a sanitizer intervention. CONCLUSION: Video surveillance of hand hygiene behavior yields results comparable to in-person observation among schools in a resource-constrained setting. Video surveillance also has certain advantages over in-person observation, including rapid data processing and the capability to capture new behavioral insights. Peer influence can significantly improve student hand cleaning behavior and, when possible, should be exploited in the design and implementation of school hand hygiene programs. |
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