Last data update: Mar 21, 2025. (Total: 48935 publications since 2009)
Records 1-30 (of 701 Records) |
Query Trace: King J[original query] |
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Investigating two decades of Streptococcus pneumoniae bacteraemia in the Gelderland area, the Netherlands, using whole-genome sequencing
Sanches Ferreira AD , King AC , Wolters F , Wertheim HFL , Mulder B , Swanink CMA , van der Gaast-de Jongh CE , Arends DW , van Sorge NM , Schaars C , Hung HCH , Hawkins PA , McGee L , Bentley SD , Veening JW , de Jonge MI , Lo SW , Cremers AJH . Microb Genom 2025 11 (3) ![]() ![]() ![]() In the Netherlands, the 7-valent pneumococcal conjugate vaccine (PCV) was introduced to the childhood immunization programme in 2006 and replaced by the 10-valent PCV (PCV10, GSK) in 2011. To describe invasive pneumococcal disease in the era of childhood PCV vaccination on pneumococcal bacteraemia across all ages, we collected and sequenced 979 pneumococcal blood isolates from consecutive patients with pneumococcal bacteraemia in the Gelderland area, the Netherlands, between 2000 and 2020. In total, 58% of the bacteraemia cases (n=563/979) occurred in the elderly population. Compared to the pre-PCV period (2000-2005), the odds ratio for non-PCV10 bacteraemia was 17.5 (CI 9.9-31.6; P<0.001) in the late-PCV10 period, showing an overall increase in the proportion of bacteraemia cases being caused by non-vaccine serotype pneumococci (2016-2020). The increase in non-PCV10 serotypes is mainly driven by an expansion of lineage global pneumococcal sequencing cluster 3 (GPSC3) expressing serotype 8, alongside the emergence of serotype 12F that was mediated by multiple lineages (GPSC32/GPSC26/GPSC55). Both serotypes 8 and 12F were included in the latest PCV20 formulation that is licensed to be used in children and adults in Europe. Over 20 years, we observed a low prevalence of antimicrobial resistance (AMR) as predicted by genome data. There were no significant changes in AMR prevalence after vaccine introduction (P>0.05 for all comparisons). We saw a stably low prevalence of reduced penicillin susceptibility, which was observed in multiple pneumococcal lineages, with GPSC10 being the most common in the Gelderland collection, whilst GPSC1 and GPSC6 were common among the penicillin-resistant pneumococcal blood culture isolates provided by the Netherlands Reference Laboratory for Bacterial Meningitis. Comparison to global collections of GPSC10, GPSC1 and GPSC6 isolates favored the likelihood of separate introductions of penicillin-resistant isolates rather than cloncal expansion. Genomic surveillance of pneumococcal bacteraemia in this unbiased population sample in the Netherlands supports the use of higher valency PCVs, such as PCV20, especially in adults, to prevent future bacteraemia cases caused by Streptococcus pneumoniae in the Gelderland area, the Netherlands, while maintaining a low prevalence of AMR in the pneumococcal population. |
Insights of SEDRIC, the Surveillance and Epidemiology of Drug-Resistant Infections Consortium
Feasey N , Ahmad R , Ashley E , Atun R , Baker KS , Chiari F , van Doorn HR , Holmes A , Jinks T , Jermy A , Joshi J , Kanj SS , King M , Limmathurotsakul D , Midega J , Mpundu M , Nunn J , Okeke IN , Reid S , Sievert D , Turner P , Walia K , Peacock SJ . Wellcome Open Res 2025 10 5 ![]() ![]() The increasing threat from infection with drug-resistant pathogens is among the most serious public health challenges of our time. Formed by Wellcome in 2018, the Surveillance and Epidemiology of Drug-Resistant Infections Consortium (SEDRIC) is an international think tank whose aim is to inform policy and change the way countries track, share, and analyse data relating to drug-resistant infections, by defining knowledge gaps and identifying barriers to the delivery of global surveillance. SEDRIC delivers its aims through discussions and analyses by world-leading scientists that result in recommendations and advocacy to Wellcome and others. As a result, SEDRIC has made key contributions in furthering global and national actions. Here, we look back at the work of the consortium between 2018-2024, highlighting notable successes. We provide specific examples where technical analyses and recommendations have helped to inform policy and funding priorities that will have real-world impact on the surveillance and epidemiology of infections with drug-resistant pathogens. | The increasing threat from infections that cannot be treated with medicines, so called drug resistant infections, is among the most serious public health challenges of our time. Formed by Wellcome in 2018, the Surveillance and Epidemiology of Drug-Resistant Infections Consortium (SEDRIC) is an international think tank whose aim is to inform policy and change the way countries track, share, and analyse data relating to drug-resistant infections, by defining knowledge gaps and identifying barriers to the delivery of global surveillance. SEDRIC delivers its aims through discussions and analyses by world-leading scientists that result in recommendations and advocacy to Wellcome and others. As a result, SEDRIC has made key contributions in furthering global and national actions. Here, we look back at the work of the consortium between 2018-2024, highlighting notable successes. We provide specific examples where technical analyses and recommendations have helped to inform policy and funding priorities that will have real-world impact on the surveillance and of infections with pathogens that are becoming difficult or impossible to treat. | eng |
Planning, development, design, and operation of the 2016 national culturally and linguistically appropriate services survey for office-based physicians
Myrick KL , Salvaggio M , Ejike-King L , Dunston SK , Dorsey-Johnson R , Khare M , Lau DT . Vital Health Stat 2025 2025 (67) Objectives This report describes the development and operations of the 2016 National Culturally and Linguistically Appropriate Services Survey for Office-based Physicians (National CLAS Physician Survey). The survey was developed to understand awareness, adoption, and implementation of the National CLAS Standards in health and health care among office-based physicians. Methods Survey development included a literature review of survey and assessment instruments that evaluated cultural and linguistic appropriateness in health care. Survey questions were pretested during a cognitive interview study of 20 office-based physicians in the District of Columbia metropolitan area. The cognitive interviews were analyzed using a grounded theory approach. The final survey was administered via web, mail, and computer-assisted telephone interview to 2, 400 sampled physicians between August 2016 and December 2016. A nonresponse bias assessment was conducted. Results The literature review identified five survey and assessment instruments. Collectively, survey content included: cultural competency training, cultural awareness, and adoption of the National CLAS Standards. Cognitive interviews showed respondent difficulty in question interpretation and survey completion of some items. Survey revisions addressed these issues. The final overall weighted survey response rate was 33.8%. Final weights produced a lower standardized bias than base weights. Conclusions The National CLAS Physician Survey is the first nationally representative survey to describe the use and implementation of culturally and linguistically appropriate services by office-based physicians. Data can serve as a baseline for future studies and as a benchmark for meeting the key objectives of the National CLAS Standards. © 2025, null. All rights reserved. |
Notes from the field: Enhanced identification of tobacco use among adult Medicaid members - King County, Washington, 2016-2023
Sabbatini AK , Craig A , Kern E , Hernandez S , Brazeel C , Kearly A , Hluchan M , Idehen O , Courtney-Long E , Husten C , Armour BS . MMWR Morb Mortal Wkly Rep 2025 74 (7) 116-117 |
Social risk factors screening preferences among breast and prostate cancer survivors: A qualitative study
Schubel LC , Rivera Rivera J , Pratt-Chapman ML , Astorino J , Taylor T , Littlejohn R , Smith JL , Sabatino SA , White A , OBuckley B , King C , Mandelblatt J , Gallagher C , Arem H . J Psychosoc Oncol 2025 1-19 OBJECTIVES: This project aimed to understand the experiences and preferences for social risk factor screening among racially, ethnically, and linguistically diverse cancer survivors in the Washington, DC, region. METHODS: Semi-structured interviews were conducted with English, Spanish, and Amharic-speaking breast and prostate cancer survivors. Data were inductively coded to identify themes, and differences by race and preferred language were evaluated. FINDINGS: Twenty-two interviews in English (n = 14), Spanish (n = 7), and Amharic (n = 1) among participants who identified as Black (n = 8), White (n = 5), Asian (n = 1), Other (n = 6), and multiracial (n = 2) were completed. Participants reported unresolved needs during treatment including transportation, healthful food, mental health care, financial help, and employment assistance. COVID-19 exacerbated many needs. Most participants did not recall discussing needs with oncology teams, but all participants were open to having these conversations. CONCLUSION(S): This research reveals that cancer survivors might benefit from culturally appropriate strategies that address social needs. |
A qualitative analysis of COVID-19 vaccination intent, decision-making, and recommendations to increase uptake among residents and staff in six homeless shelters in Seattle, WA, USA
Cox Sarah N , Thuo Nicholas B , Rogers Julia H , Meehan Ashley A , Link Amy C , Martinez Miguel , Lo Natalie K , Manns Brian J , Ogokeh Constance , Chow Eric J , Rolfes Melissa A , Mosites Emily , Al Achkar Morhaf , Chu Helen Y . J Soc Distress Homeless 2024 33 (2) 316-328 COVID-19 vaccines mitigate severe disease, yet uptake remains low among people experiencing homelessness (PEH) despite the risk of transmission in congregate settings like homeless shelters. This study evaluated retrospective COVID-19 vaccination intent and decision-making between March 2020-October 2021 to identify modifiable factors to improve vaccine acceptance among PEH. We conducted 31 semi-structured interviews and eight focus group discussions across six homeless shelters in Seattle-King County, Washington. Residents and staff aged >= 18 years were recruited through purposive sampling for interviews and convenience sampling for focus groups. Thematic analysis was conducted. Participants reported that too much contradictory and changing information about COVID-19 vaccines led to confusion. Information deemed trustworthy contributed to individual's knowledge and in some cases changed their vaccination intent. While many intended to get vaccinated without external motivators, others were motivated by incentives and requirements. Despite intention to vaccinate, participants reported barriers to COVID-19 vaccine access including availability of vaccine doses, timely eligibility for vaccination, and availability of appointments. Participants presented recommendations to improve COVID-19 information content and dissemination, access, and use of incentives in shelter settings. Future research should test recommended vaccination strategies rooted in the voices and experiences of PEH to determine feasibility and effectiveness in shelter settings. (PsycInfo Database Record (c) 2025 APA, all rights reserved) |
Characteristics of invasive pneumococcal diseases cases among U.S. Children with hematologic malignancies before and after introduction of thirteen-valent pneumococcal conjugate vaccine, 2005-2019
Hamilton K , Luvsansharav UO , Xing W , Gierke R , King J , Farley MM , Schaffner W , Thomas A , Chai SJ , Harrison LH , Holtzman C , McGuire SM , Petit S , Barnes M , Angeles KM , Chochua S , McGee L , Kobayashi M . Pediatr Infect Dis J 2025 BACKGROUND: Children with hematologic malignancies (HMs) are at increased risk of invasive pneumococcal disease (IPD). Data on long-term IPD trends in U.S. children with HM after 13-valent pneumococcal conjugate vaccine (PCV13) introduction are limited. We assessed IPD trends in children with HM before and after PCV13 introduction and the proportion of IPD cases caused by serotypes contained in new pneumococcal conjugate vaccines (PCV15 and PCV20, introduced after 2019). METHODS: During 2005-2019, IPD cases among children aged <18 years were identified through the Active Bacterial Core surveillance. We characterized IPD cases by underlying conditions (HM, other IPD risk factors, no IPD risk factors) and time periods [pre-PCV13 (2005-2009), early-PCV13 (2010-2014) and late-PCV13 (2015-2019)]. We estimated incidence rate ratios (IRRs) in children aged <5 years with and without HM and during 2010-2019. RESULTS: We identified 5912 cases of IPD in children aged <18 years; 215 (3.6%) were among children with HM. The proportion of IPD cases with PCV13 serotypes decreased over time in all risk groups; however, IRRs among children with vs. without HM were 215.8 [95% confidence interval (CI): 146.1-292.4] and 240.9 (95 CI: 152.3-341.1) in early and late-PCV13 periods, respectively. In late-PCV13 period, PCV15/non-PCV13 serotypes and PCV20/non-PCV15 serotypes caused 19.4% and 4.8% of IPD cases among children with HM. CONCLUSIONS: The proportion of PCV13-type IPD decreased in all children after PCV13 introduction. However, children with HM remain at an increased risk of IPD. Continued monitoring of the impact of PCV15 and PCV20 use among children with HM is needed. |
Spatial analysis of social vulnerability and firearm injury EMS encounters in King County, Washington, 2019-2023
Esie P , Liu J , Brownson K , Poel AJ , Ta M , Pallickaparambil AJ . Public Health Rep 2025 ![]() Objectives: In the United States, firearm injuries disproportionately occur in low-income communities and among racial and ethnic minority populations. Recognizing these patterns across social conditions is vital for effective public health interventions. Using timely and localized data, we examined the association between social vulnerability and firearm injuries in King County, Washington. Methods: For this ecological, cross-sectional study, we used health reporting areas (HRAs) (n = 61), a subcounty geography of King County. We obtained HRA-level counts of firearm injuries by using responses from King County emergency medical services (EMS) from 2019 through 2023. We measured HRA-level social vulnerability by using the Social Vulnerability Index (SVI) from the Centers for Disease Control and Prevention/Agency for Toxic Substances and Disease Registry, categorized into tertiles (low, moderate, and high SVI). We used bivariate choropleth mapping to illustrate spatial associations between SVI and rates of firearm injuries per 10 000 residents. We used Bayesian spatial negative binomial regression to quantify the strength of these associations. Results: Bivariate choropleth mapping showed a correlation between SVI and rates of firearm injuries. In spatial models, HRAs categorized as high SVI had a 3 times higher rate of firearm injuries than HRAs categorized as low SVI (incidence rate ratio = 3.01; 95% credible interval, 2.02-4.47). Rates of firearm injuries were also higher in HRAs categorized as moderate versus low SVI (incidence rate ratio = 1.72; 95% credible interval, 1.23-2.40). Conclusion: In King County, areas with high social vulnerability had high rates of EMS responses to firearm injuries. SVI can help identify geographic areas for intervention and provide a framework for identifying upstream factors that might contribute to spatial disparities in firearm injuries. © 2024, Association of Schools and Programs of Public Health. |
Outbreak of rotavirus diarrheal infection among adults in King County, Washington, January-June 2023
Ma J , Kumbhakar RG , Casto A , Chow EJ , Englund JA , Gautam R , Jaimes J , Tate JE , Smart S , Mani NS , Cohen SA , Hussein A , Rietberg K , Bryson-Cahn C , Fang FC . J Infect Dis 2025 ![]() ![]() Rotavirus is a leading cause of diarrhea among children but less known as a cause among adults. We describe clinical, epidemiologic, and genotype characteristics of a rotavirus outbreak among adults in King County, Washington occurring January-June 2023. Adult rotavirus incidence in 2023 was ten times higher than the same period in 2022 (5% versus 0.5% samples). Disease severity was mild. G9P[4], an uncommon, non-vaccine strain in USA, was the predominant genotype. Genotyping suggested spillover from children with subsequent spread among adults. Our study highlights benefits of routine testing and genotyping during outbreaks for surveillance, tracking, and understanding implications on vaccination. |
Long-term impact of 10-valent pneumococcal conjugate vaccine among children <5 years, Uganda, 2014-2021
Wanyana MW , Migisha R , King P , Bulage L , Kwesiga B , Kadobera D , Ario AR , Harris JR . PLOS Glob Public Health 2025 5 (1) e0002980 Pneumonia is the second leading cause of hospital admissions and deaths among children <5 years in Uganda. In 2014, Uganda officially rolled out the introduction of the pneumococcal conjugate vaccine (PCV) into routine immunization schedule. However, little is known about the long-term impact of PCV on pneumonia admissions and deaths. In this study, we described the trends and spatial distribution of pneumonia hospital admissions and mortality among children <5 years in Uganda, 2014-2021. We analysed secondary data on pneumonia admissions and deaths from the District Health Information System version 2 during 2014-2021. The proportion of pneumonia cases admitted and case-fatality rates (CFRs) for children <5 years were calculated for children <5 years presenting at the outpatient department. At national, regional, and district levels, pneumonia mortality rates were calculated per 100,000 children <5 years. The Mann-Kendall Test was used to assess trend significance. We found 667,122 pneumonia admissions and 11,692 (2%) deaths during 2014-2021. The overall proportion of pneumonia cases admitted among children <5 years was 22%. The overall CFR was 0.39%, and the overall pneumonia mortality rate among children <5 years was 19 deaths per 100,000. From 2014 to 2021, there were declines in the proportion of pneumonia cases admitted (31% to 15%; p = 0.051), mortality rates (24/100,000 to 14 per 100,000; p = 0.019), and CFR (0.57% to 0.24%; p = 0.019), concomitant with increasing PCV coverage. Kotido District had a persistently high proportion of pneumonia cases that were admitted (>30%) every year while Kasese District had persistently high mortality rates (68-150 deaths per 100,000 children <5 years). Pneumonia admissions, mortality, and case fatality among children <5 years declined during 2013-2021 in Uganda after the introduction of PCV. However, with these trends it is unlikely that Uganda will meet the 2025 GAPPD targets. There is need to review implementation of existing interventions and identify gaps in order to highlight priority actions to further accelerate declines. |
Cervical cancer incidence and trends among women aged 15-29 years by county-level economic status and rurality - United States, 2007-2020
Agarwal R , King JB , Gopalani SV , Senkomago V . Cancer Epidemiol 2024 94 102730 INTRODUCTION: Variations in cervical cancer incidence rates and trends have been reported by sociodemographic characteristics. However, research on economic characteristics is limited especially among younger women in the United States. METHODS: We analyzed United States Cancer Statistics data to examine age-standardized cervical cancer incidence rates among women aged 15-29 years during 2007-2020. We used an index-based county-level economic classification to rank counties in the top 25 %, middle 25 %-75 %, and bottom 25 %. We assessed differences in incidence using rate ratios and trends using annual percent changes (APCs) from joinpoint regression. Due to impact from the COVID-19 pandemic, trend analysis excluded 2020 data. Analyses were conducted during August-October 2023. RESULTS: During 2007-2020, incidence rates were lower in the top 25 % counties economically than the bottom 25 % or middle 25 %-75 % (1.6 vs 2.1 vs 1.9 per 100,000, respectively). Rates were higher in nonmetropolitan than metropolitan counties across economic groups. Overall, rates declined in all county-level economic strata, especially in the bottom 25 % during 2015-2019 (APC -10.6 %). Rates appeared to decrease in metropolitan counties and women of all races across economic categories. decreases were most evident in the top 25 % of non-Hispanic White women during 2016-2019 and nonmetropolitan counties during 2017-2019. CONCLUSIONS: In women aged 15-29 years, declining rates of cervical cancer during 2007-2019 across county-level economic strata may partly reflect effects of human papillomavirus vaccination and cervical cancer screening. Further observed differences by race and rurality may help inform efforts to increase implementation of preventive measures in populations with the highest burden. |
Rates and risk factors for relapse among children recovered from severe acute malnutrition in Mali, South Sudan, and Somalia: a prospective cohort study
King S , Marshak A , D'Mello-Guyett L , Yakowenko E , Chabi SM , Samake S , Bunkembo M , Diarra S , Mohamud FA , Sheikh Omar M , Lamwaka NG , Gose M , Ayoub K , Hersi Olad A , Bagayoko A , Trehan I , Cumming O , Stobaugh H . Lancet Glob Health 2025 13 (1) e98-e111 BACKGROUND: Community-based management of acute malnutrition is an effective treatment model for severe acute malnutrition. However, sparse evidence exists on post-discharge outcomes and the sustainability of recovery. This study aimed to evaluate the risk and determinants of relapse following severe acute malnutrition recovery in high-burden settings. METHODS: This multi-country prospective cohort study followed children who had recovered from severe acute malnutrition and their non-malnourished peers in parallel for 6 months in Mali (nine sites), South Sudan (six sites), and Somalia (one site). Nutritional status was assessed by research staff at nutrition clinics monthly to obtain the proportion of children exposed to severe acute malnutrition who relapsed to acute malnutrition and the relative risk of developing acute malnutrition for exposed versus non-exposed (ie, previously non-malnourished) children. Exposed children were eligible if they had been discharged from community-based management of acute malnutrition programmes while aged 6-47 months. Non-exposed children were eligible if they had not had an episode of acute malnutrition in the previous year; non-exposed children were matched to exposed children by age, sex, and community. Acute malnutrition was defined as having a mid-upper arm circumference of less than 125 mm, a weight-for-height Z score of less than -2, or nutritional oedema. The primary outcome was the cumulative incidence of acute malnutrition at 6 months in the exposed and non-exposed cohorts. Relapse was defined as an episode of acute malnutrition among exposed children during the 6-month follow-up period. FINDINGS: Between April 9, 2021, and June 2, 2022, 2749 children were enrolled (1689 exposed and 1060 non-exposed). After 6 months, 30% (95% CI 25-34) of children previously exposed to severe acute malnutrition relapsed in Mali, 63% (95% CI 59-67) in South Sudan, and 22% (95% CI 19-25) in Somalia. Depending on the context, exposed children were 1·2-6·2 times more likely to have acute malnutrition compared with non-exposed children. Higher anthropometric measurements at discharge were protective against relapse; however, few other child-level or household-level factors at the time of discharge were associated with subsequent relapse. After discharge, children experiencing food insecurity or morbidity at time of follow-up were more likely to relapse than those who were not experiencing these factors. INTERPRETATION: Following severe acute malnutrition recovery, children have a significant risk of relapsing within 6 months, highlighting the particular vulnerability of this population. Although the community-based management of acute malnutrition model proves highly effective in saving lives, high relapse indicates the need for additional services during and following treatment to better sustain recovery. FUNDING: The United States Agency for International Development. |
Stigma among ebola disease survivors in Mubende and Kassanda districts, Central Uganda, 2022
Zalwango MG , Paige S , Migisha R , Nakafeero Simbwa B , Nsubuga EJ , Asio A , Kabami Z , Zalwango JF , Kawungezi PC , Wanyana MW , King P , Naiga HN , Agaba B , Zavuga R , Earle-Richardson G , Kwesiga B , Bulage L , Kadobera D , Ario AR , Harris JR . PLOS Glob Public Health 2024 4 (12) e0003272 Ebola disease survivors often experience stigma in multiple forms, including felt (perceived) stigma, enacted (action-based) stigma, and institutional stigma. On September 20, 2022, Uganda declared a Sudan Virus Disease (species orthoebolavirus sudanense) outbreak after a patient with confirmed Sudan virus (SUDV) infection was identified in Mubende District. The outbreak led to 142 confirmed and 22 probable cases over the next two months. We examined the types of stigma experienced by survivors and their household members and its effect on their well-being. We conducted a qualitative study during January 2023 in Mubende and Kassanda Districts. We conducted in-depth and key informant interviews with ten SUDV disease survivors, ten household members of SUDV disease survivors, and ten key informants (district officials and health workers in the affected communities). Interviews were recorded, translated, transcribed, and analyzed thematically. Survivors reported experiencing isolation and rejection by community members and loss of work. They reported being denied purchases at shops or having their money collected in a basket and disinfected (enacted stigma), which led to self-isolation (felt stigma). Educational institutions denied admission to some students from affected homes, while parents of children in some affected families stopped sending children to school due to verbal abuse from students and teachers (structural stigma). Prolonged SUDV disease symptoms and additional attention to survivors from responders (including home visits by health workers, public distribution of support items, and conspicuous transport from home to the survivor's clinic) were perceived as aggravating both felt and enacted stigma. Even after the outbreak had been declared over, survivors felt that they were still considered a threat to the community. Survivors experienced mainly enacted stigma which was aggravated by the outbreak response and control activities such as additional attention to survivors from responders. Strengthening community engagement to counteract stigma, rethinking response activities that aggravate stigma, integrated response interventions by partners, private distribution of support items, and increasing awareness and sensitization could reduce stigma among the Ebola disease survivors in future responses. |
Acute stroke care coordination in the United States: Variation in state laws for emergency medical services and hospitals
Ye Z , Gilchrist S , Omeaku N , Shantharam S , Ritchey M , Coleman King SM , Sperling L , Holl JL . J Stroke Cerebrovasc Dis 2024 108174 BACKGROUND: Lack of care coordination between Emergency Medical Services (EMS) and hospitals contributes to delay of acute stroke (AS) treatment. In the United States, states have adopted laws to improve the quality of EMS and hospital care; the degree to which these laws create regulatory incentives to promote care coordination between them is less well known. We examined state variation in attributes of laws that may influence AS care coordination between EMS and hospitals. MATERIALS AND METHODS: We selected ten law "dyads" across seven domains of EMS and hospital AS care informed by published risk assessments of critical steps for improved door-to-needle time and door-in-door-out time. We assessed concordance in prescriptiveness (degree to which levels were similar) and in adoption (degree to which laws were adopted concurrently) of the laws in effect between January 2002 and January 2018 in the United States. RESULTS: The proportion of states with prescriptiveness concordance ranged from 47% (e.g., inter-facility transfer agreements, comprehensive, primary stroke center certification) to 75% (e.g., Continuous Quality Improvement (CQI) for EMS and hospitals). Adoption concordance ranged from 31% (e.g., inter-facility transfer agreements, Acute Stroke Ready Hospital certification) to 86% (e.g., CQI for EMS and hospitals). Laws for EMS triage were less prescriptive than laws for stroke center certification in 22%-35% of states adopting both laws, depending on stroke center type. CONCLUSIONS: Subsequent policy implementation and impact studies may benefit from assessing concordance and prescriptiveness in policy intervention adoption, particularly as a foundation for evaluating delays in AS treatment due to inefficient care coordination. |
The Spectrum of Cutaneous Granulomatous Inflammation and Detection of Rubella Virus in Skin Biopsies of Patients With Common Variable Immune Deficiency
King AL , Johnson EF , Alavi A , Agrawal S , Sokumbi O , Perelygina L , Yorke L , Beard S , Wieland CN . J Cutan Pathol 2024 BACKGROUND: There is a known association between common variable immunodeficiency (CVID) and granulomas in multiple organ systems, including the skin, lung, liver, and spleen. Rubella virus has also been detected within cutaneous granulomas in both immunocompetent and immunocompromised hosts. We present a retrospective case series of patients with CVID and granulomatous skin disease and describe the spectrum of clinical and histopathologic features, including the status of rubella virus in the cutaneous granulomas. METHODS: We retrospectively reviewed the clinical and histopathological characteristics of patients diagnosed with CVID at our institution, with cutaneous findings and skin biopsies available for review between 1990 and 2023, demonstrating granulomatous inflammation. RESULTS: Eight patients met the inclusion criteria. The most common histopathologic pattern was palisaded granulomatous inflammation, seen in five of eight cases. Three cases showed strictly sarcoidal granulomas. Background inflammation was peri-granulomatous (8/8) and the predominant background inflammatory cell type was lymphocytic (6/8). Rubella virus testing was performed for seven of eight cases and found to be positive in one case. CONCLUSION: Cutaneous granulomatous disease in CVID can present with a spectrum of clinical morphologies, granulomatous patterns, and variable rubella virus persistence. Dermatopathologists should be aware of the spectrum of findings when considering cutaneous CVID-related granulomatous disease in the differential diagnosis. |
Infant and young child feeding practices among conflict-affected Ukrainian households: A cross-sectional survey in Kyiv, Lviv and Odesa regions
Majer J , Mbuto S , Nesterova V , King S , Bilukha O . Matern Child Nutr 2024 e13742 Infant and young child feeding practices (IYCF) are crucial for children's growth and development but often deteriorate during periods of instability. A cross-sectional survey conducted in three oblasts of Ukraine-Kyiv City and Kyiv, Lviv, and Odesa-enroled 724 children 0-23 months of age from 699 households. Using global WHO IYCF Guidelines, 12 indicators of optimal IYCF practices were evaluated. The study found IYCF practices to be relatively stable since 2015, despite the continued escalation of conflict, with an improvement in exclusive breastfeeding (EBF). EBF was reported by 51% of mothers, while breastfeeding was initiated early in 65% of children. Complementary feeding practices were optimal for most children, with 79% having a minimum acceptable diet. Infant formula assistance was independently associated with suboptimal breastfeeding practices in multi-variable models. Children from households that received formula assistance had 67% (adjusted odds ratio [aOR] 0.33, 95% confidence interval [CI] 0.14-0.73) lower odds of being exclusively breastfed, 65% (aOR 0.35, 95% CI 0.20-0.61) lower odds of continued breastfeeding at 12 months, and 3.3 times (95% CI 2.31-4.78) higher odds of being bottlefed. Baby food assistance did not independently predict a minimum acceptable diet. High levels of optimal complementary feeding sustained since 2015 suggest protective factors for child nutrition in Ukraine, such as domestic agriculture and social safety nets. Additionally, maternal education was consistently linked to better IYCF outcomes, highlighting the need for targeted support for less-educated mothers. The negative association of formula assistance with EBF warrants further research alongside reinforcement of guidelines to prevent inappropriate formula targeting. |
Reducing dust and respirable crystalline silica near conveyors using a hybrid dust control system
Parks DA , King GW , Koski BD , Bierie GS , Sunderman CB , Wilson SE , Miller AL . Min Metall & Explor 2024 Occupational exposures to respirable dusts and respirable crystalline silica (RCS) is well established as a health hazard in many industries including mining, construction, and oil and gas extraction. The U.S. National Institute for Occupational Safety and Health (NIOSH) is researching methods of controlling fugitive dust emissions at outdoor mining operations. In this study, a prototype engineering control system to control fugitive dust emissions was developed combining passive subsystems for dust settling with active dust filtration and spray-surfactant dust suppression comprising a hybrid system. The hybrid system was installed at an aggregate production facility to evaluate the effectiveness of controlling fugitive dust emissions generated from two cone crushers and belt conveyors that transport crushed materials. To evaluate effectiveness of the system, area air measurements (n = 14 on each day for a total of 42 samples) for respirable dust were collected by NIOSH before, during, and after the installation of the dust control system in the immediate vicinity of the crushers and the nearby conveyor transfer point. Compared to pre-intervention samples, over short periods of time, geometric mean concentrations of airborne respirable dust were reduced by 37% using passive controls (p = 0.34) but significantly reduced by 93% (p < 0.0001) when the full hybrid system was installed. This proof-of-concept project demonstrated that the combined use of active and passive dust controls along with a spray surfactant can be highly effective in controlling fugitive dust emissions even with minimal use of water, which is desirable for many remote mining applications. © This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2024. |
Next-generation 3D printed multipurpose prevention intravaginal ring for prevention of HIV, HSV-2, and unintended pregnancy
Dahl DK , Srinivasan P , Janusziewicz R , King JL , Shrivastava R , Zhang J , Little D , Bachman S , Kelley K , Cottrell ML , Schauer AP , Sykes C , Kashuba ADM , Smith J , Benhabbour SR . J Control Release 2024 Globally, nearly half of all pregnancies are unintended, ~1.3 million new human immunodeficiency virus (HIV) infections are reported every year, and more than 500 million people are estimated to have a genital herpes simplex virus (HSV-2) infection. Here we report the first 3D printed multipurpose prevention technology (MPT) intravaginal ring (IVR) for prevention of HIV, HSV-2, and unintended pregnancy. The IVRs were fabricated using state-of-the-art Continuous Liquid Interface Production (CLIP™) 3D printing technology using a biocompatible silicone-urethane based resin. Anti-HIV drug (Dapivirine, DPV), anti-herpes drug (Pritelivir, PTV) and a contraceptive drug (Levonorgestrel, LNG) were loaded in a macaque size IVR (25 mm outer diameter, OD; 6.0 mm cross-section, CS) allometrically scaled from the human size (54 mm OD; 7.6 mm CS) IVR analogue. All three active pharmaceutical ingredients (APIs) were loaded in the IVR using a single-step drug loading process driven by absorption. DPV, PTV, and LNG elicited zero-order release kinetics in vitro in simulated vaginal fluid (SVF) at pH 4 and pH 8 relevant to human and macaque vaginal pH respectively. CLIP 3D printed MPT IVRs remained stable after 6 months of storage at 4 °C with no change in physical, dimensional, or mechanical properties and no change in drug concentration and absence of drug degradation byproducts. The MPT IVRs elicited sustained release of all three APIs in macaques for 28 days with median plasma concentrations of 138 pg/mL (DPV), 18,700 pg/mL (PTV), and 335 pg/mL (LNG). Safety studies demonstrated that the MPT IVRs were safe and well tolerated in the macaques with no observed change or abnormalities in vaginal pH and no significant changes in any of the 22 mucosal cytokines and chemokines tested including pro-inflammatory (IL-1β, IL-6, IL-8, IFN-γ, TNF-α, IL-17, IL-18) and anti-inflammatory (IL-10, IL-12) cytokines while the MPT IVR was in place or after its removal. Additionally, MPT IVRs elicited no observed alterations in systemic CD4+ and CD8+ T cells during the entire study. Collectively, the proposed MPT IVR has potential to expand preventative choices for young women and girls against unintended pregnancy against two highly prevalent sexually transmitted infections (STIs). |
Clinical and genomic epidemiology of Coxsackievirus A21 and Enterovirus D68 in homeless shelters, King County, Washington, USA, 2019-2021
Cox SN , Casto AM , Franko NM , Chow EJ , Han PD , Gamboa L , Pfau B , Xie H , Kong K , Sereewit J , Rolfes MA , Mosites E , Uyeki TM , Greninger AL , Carone M , Shim MM , Bedford T , Shendure J , Boeckh M , Englund JA , Starita LM , Roychoudhury P , Chu HY . Emerg Infect Dis 2024 30 (11) 2250-2260 ![]() ![]() Congregate homeless shelters are disproportionately affected by infectious disease outbreaks. We describe enterovirus epidemiology across 23 adult and family shelters in King County, Washington, USA, during October 2019-May 2021, by using repeated cross-sectional respiratory illness and environmental surveillance and viral genome sequencing. Among 3,281 participants >3 months of age, we identified coxsackievirus A21 (CVA21) in 39 adult residents (3.0% [95% CI 1.9%-4.8%] detection) across 7 shelters during October 2019-February 2020. We identified enterovirus D68 (EV-D68) in 5 adult residents in 2 shelters during October-November 2019. Of 812 environmental samples, 1 was EV-D68-positive and 5 were CVA21-positive. Other enteroviruses detected among residents, but not in environmental samples, included coxsackievirus A6/A4 in 3 children. No enteroviruses were detected during April 2020-May 2021. Phylogenetically clustered CVA21 and EV-D68 cases occurred in some shelters. Some shelters also hosted multiple CVA21 lineages. |
Using location-based services data to map and evaluate a community design intervention to increase bicycling, Denver, Colorado
Park YS , King RJ , Pejavara A , Hathaway K , Wergin J , Townley C , Leonard S , Williamson JM , Galuska DA , Fulton JE . Prev Chronic Dis 2024 21 E80 |
Proposed framework for adopting privacy-preserving record linkage for public health action
Pathak A , Serrer L , Bhalla M , King R , Mirel LB , Srinivasan A , Baier P , Zapata D , David-Ferdon C , Luxenberg S , Gundlapalli AV . J Public Health Manag Pract 2024 OBJECTIVES: To propose a framework for adoption of privacy-preserving record linkage (PPRL) for public health applications. METHODS: Twelve interviews with subject matter experts (SMEs) were conducted virtually and coded using an inductive approach. A collaborative session was conducted with SMEs to identify key steps in the PPRL project lifecycle which informed development of a PPRL implementation checklist. RESULTS: This framework has 2 decision-making levels: the organization level and the project or program level. Organization-level considerations include PPRL governance, the optimal choice among approved PPRL solutions, the need for longitudinal linkages, the potential issue of vendor lock-in, and costs. Program-level considerations include characteristics of the PPRL use case, linkage quality and accuracy, data privacy and use, security thresholds, compatibility with data owners' data architecture, and trade-offs between open-source and commercial PPRL solutions. A PPRL implementation checklist was developed to guide public health practitioners considering PPRL for data linkage. CONCLUSIONS: The framework may be considered by public health entities to guide adoption and implementation of PPRL in public health research and surveillance. Public health experts may refer to this framework and the PPRL implementation checklist when determining the appropriateness of PPRL for specific use cases and implementation planning. |
COVID-19 deaths and minority health social vulnerability, in the U.S., January 1, 2020 through June 24, 2023
King H , Woolfork MN , Yunyou A , Edomwande Y , Euler E , Almendares O , Neupane SN , Hagen MB . J Racial Ethn Health Disparities 2024 BACKGROUND: Health disparities, leading to worse health outcomes such as elevated COVID-19 mortality rates, are rooted in social and structural factors. These disparities notably impact individuals from lower socioeconomic backgrounds and more socially vulnerable areas. We analyzed the relationship between COVID-19 deaths and social vulnerability using the Minority Health Social Vulnerability Index (MHSVI). METHODS: COVID-19 death data in the U.S. was obtained from the Centers for Disease Control and Prevention (CDC) National Center for Health Statistics, where COVID-19 deaths were defined using the ICD-10 code U07.1. MHSVI composite scores were calculated for 3089 U.S. counties and categorized into social vulnerability quartiles, where values ranged from 0 (lowest vulnerability) to 1 (highest vulnerability). Negative binomial regression was employed to determine death rate ratios for each quartile within each theme. Finally, a multivariate negative binomial regression including all MHSVI sub-themes, excluding the overall index ranking, was used to assess the association between each theme and COVID-19 death rates independently. RESULTS: There were 1,134,272 COVID-19 deaths from January 1, 2020 through June 24, 2023. Adjusted rate ratios for COVID-19 deaths in the overall index ranking were 1.06 (95% CI 0.99-1.13), 1.14 (95% CI 1.06-1.22), and 1.41 (95% CI 1.31-1.52) for the second, third and fourth quartiles, respectively. Sub-themes of socioeconomic status (SES), household characteristics (HC), racial and ethnic minority status (REMS), housing type and transportation (HTT), and medical vulnerability (MV) revealed increasing death rates in higher vulnerability quartiles. The healthcare infrastructure and access (HIA) theme had decreasing death rate ratios of 0.74 (95% CI 0.71-0.78), 0.59 (95% CI 0.56-0.62), and 0.42 (95% CI 0.39-0.44) for the second, third, and fourth quartiles, respectively. Finally, the multivariate analysis showed that the HC, HTT, HIA, and MV themes were associated with COVID-19 deaths (P < 0.05). CONCLUSION: Counties that were identified as more socially vulnerable experienced higher death rates from COVID-19. These areas may need additional public health and social support during future pandemics. |
Outpatient visits and antibiotic use due to higher valency pneumococcal vaccine serotypes
King LM , Andrejko KL , Kabbani S , Tartof SY , Hicks LA , Cohen AL , Kobayashi M , Lewnard JA . J Infect Dis 2024 230 (4) 821-831 BACKGROUND: In 2022-2023, 15- and 20-valent pneumococcal conjugate vaccines (PCV15/PCV20) were recommended for infants. We aimed to estimate the incidence of outpatient visits and antibiotic prescriptions in US children (≤17 years) from 2016-2019 for acute otitis media, pneumonia, and sinusitis associated with PCV15- and PCV20-additional (non-PCV13) serotypes to quantify PCV15/20 potential impacts. METHODS: We estimated the incidence of PCV15/20-additional serotype-attributable visits and antibiotic prescriptions as the product of all-cause incidence rates, derived from national health care surveys and MarketScan databases, and PCV15/20-additional serotype-attributable fractions. We estimated serotype-specific attributable fractions using modified vaccine-probe approaches incorporating incidence changes post-PCV13 and ratios of PCV13 versus PCV15/20 serotype frequencies, estimated through meta-analyses. RESULTS: Per 1000 children annually, PCV15-additional serotypes accounted for an estimated 2.7 (95% confidence interval, 1.8-3.9) visits and 2.4 (95% CI, 1.6-3.4) antibiotic prescriptions. PCV20-additional serotypes resulted in 15.0 (95% CI, 11.2-20.4) visits and 13.2 (95% CI, 9.9-18.0) antibiotic prescriptions annually per 1000 children. PCV15/20-additional serotypes account for 0.4% (95% CI, 0.2%-0.6%) and 2.1% (95% CI, 1.5%-3.0%) of pediatric outpatient antibiotic use. CONCLUSIONS: Compared with PCV15-additional serotypes, PCV20-additional serotypes account for > 5 times the burden of visits and antibiotic prescriptions. Higher-valency PCVs, especially PCV20, may contribute to preventing pediatric pneumococcal respiratory infections and antibiotic use. |
The role of community beliefs and practices on the spread of ebola in Uganda, September 2022
Naiga HN , Zalwango JF , Agaba B , Kizito SN , Simbwa BN , Zalwango MG , Akunzirwe R , Kabami Z , Kawugenzi PC , Zavuga R , Ninsiima M , King P , Wanyana MW , Kiggundu T , Migisha R , Gonahasa D , Kyamwine I , Kwesiga B , Kadobera D , Bulage L , Riolexus AA , Paige SB , Harris JR . J Epidemiol Glob Health 2024 BACKGROUND: On September 20, 2022, Uganda declared an Sudan Virus Disease (SVD) outbreak in Mubende District. Another eight districts were infected September-November 2022. We examined how Ugandan community beliefs and practices spread Sudan Ebola Virus (SUDV) in 2022. METHODS: A qualitative study was conducted in Mubende, Kassanda, and Kyegegwa districts in February 2023. Nine focus group discussions and six key informant interviews were held. We investigated whether community beliefs and practices contributed to spreading Sudan Ebola Virus (SUDV). Interviews were recorded, translated, transcribed, and thematically analyzed. RESULTS: The community deaths, later found to be due to Sudan Virus Disease(SVD), were often attributed to witchcraft or poisoning. Key informants reported that SVD patients often sought traditional healers or spiritual leaders before or after formal healthcare failed. They also found that traditional healers treated SVD patients without precautions. Religious leaders praying for SVD patients and their symptomatic contacts, SVD patients hiding in friends' homes, and exhuming SVD patients from safe and dignified burials to allow traditional burials were other themes. CONCLUSION: Diversity in community beliefs and culture likely contributed to spreading the 2022 Ugandan SVD outbreak. Public health systems, traditional healers, and religious leaders can help Uganda control ebolavirus outbreaks by identifying socially acceptable and scientifically supported infection control methods. |
Using planned and unplanned adaptation to implement universal alcohol screening and brief intervention to prevent alcohol-exposed pregnancies in four primary care health systems
King DK , Ondersma SJ , McRee BG , German JS , Loree AM , Harlowe A , Alford DP , Sedotto RNM , Weber MK . Subst Use Addctn J 2024 29767342241271404 BACKGROUND: The United States Preventive Services Task Force recommends annual alcohol screening and brief behavioral intervention (alcohol SBI) with general adult and pregnant populations. Implementation of alcohol SBI in primary care has encountered numerous barriers to adapting procedures and infrastructure to support its routine delivery. This collection of case studies describes the implementation strategies used by 4 academic health system teams that were funded by the Centers for Disease Control and Prevention to implement alcohol SBI within healthcare systems to prevent alcohol-exposed pregnancies. METHODS: We used constructs from the Framework for Reporting Adaptations and Modifications-Expanded (FRAME) to describe planned and unplanned adaptations to implementation strategies, and the SBIRT (Screening, Brief Intervention, and Referral to Treatment) Program Matrix to identify key questions, challenges, and recommendations for improving alcohol SBI implementation. Participating systems were 2 regional affiliates of a national reproductive healthcare organization, an integrated non-profit healthcare system, and an urban medical center and its affiliated network of community health centers. RESULTS: Planned adaptations included expanding the target population for brief interventions to include patients drinking at low levels who could become pregnant, modifying workflows and systems to support routine screening, and customizing training content and logistics. Unplanned adaptations included varying site recruitment and pre-implementation awareness-building strategies to enhance local receptivity of systems with decentralized management, and pivoting from in-person to virtual training during the COVID-19 pandemic. Fewer unplanned adaptations were observed for health systems with centralized management structures and practice teams that were fully engaged in implementation planning, training, roll-out, and problem-solving. CONCLUSIONS: Unplanned adaptations were observed across the 4 cases and emphasized the importance of flexible, adaptive designs when implementing evidence-based practice in dynamic settings. Participation of the health system in planning, including decisions to modify electronic health records and workflows, supported adapting to unplanned circumstances to achieve implementation goals. |
Elevated body mass index is not significantly associated with reduced influenza vaccine effectiveness
King JP , Nguyen HQ , Kiniry EL , Phillips CH , Gaglani M , Martin ET , Geffel KM , Nowalk MP , Chung JR , Flannery B , Belongia EA . Sci Rep 2024 14 (1) 21466 Elevated body mass index (BMI) has been linked to severe influenza illness and impaired vaccine immunogenicity, but the relationship between BMI and clinical vaccine effectiveness (VE) is less well described. This secondary analysis of data from a test-negative study of outpatients with acute respiratory illness assessed BMI and VE against medically attended, PCR-confirmed influenza over seven seasons (2011-12 through 2017-18). Vaccination status was determined from electronic medical records (EMR) and self-report; BMI was estimated from EMR-documented height and weight categorized for adults as obesity (≥ 30 kg/m(2)), overweight (25-29 kg/m(2)), or normal and for children based on standardized z-scales. Current season VE by virus type/subtype was estimated separately for adults and children. Pooled VE for all seasons was calculated as 1-adjusted odds ratios from logistic regression with an interaction term for BMI and vaccination. Among 28,089 adults and 12,380 children, BMI category was not significantly associated with VE against outpatient influenza for any type/subtype. Adjusted VE against A/H3N2, A/H1N1pdm09, and B in adults ranged from 16-31, 46-54, and 44-57%, and in children from 29-34, 57-65, and 50-55%, respectively, across the BMI categories. Elevated BMI was not associated with reduced VE against laboratory confirmed, outpatient influenza illness. |
Assessment of capacity and performance of points of entry in detection of public health events, reporting and responding to public health emergencies, Uganda, July–September 2022
Wanyana Mercy Wendy , King Patrick , Mayinja Harriet , Migisha Richard , Kadobera Daniel , Kwesiga Benon , Bulage Lilian , Ario Alex Riolexus , Harris Julie R . Discov Health Syst 2024 3 (1) 1-11 |
Ebola disease outbreak caused by the Sudan virus in Uganda, 2022: a descriptive epidemiological study
Kabami Z , Ario AR , Harris JR , Ninsiima M , Ahirirwe SR , Ocero JRA , Atwine D , Mwebesa HG , Kyabayinze DJ , Muruta AN , Kagirita A , Tegegn Y , Nanyunja M , Kizito SN , Kadobera D , Kwesiga B , Gidudu S , Migisha R , Makumbi I , Eurien D , Elyanu PJ , Ndyabakira A , Naiga HN , Zalwango JF , Agaba B , Kawungezi PC , Zalwango MG , King P , Simbwa BN , Akunzirwe R , Wanyana MW , Zavuga R , Kiggundu T . Lancet Glob Health 2024 BACKGROUND: Uganda has had seven Ebola disease outbreaks, between 2000 and 2022. On Sept 20, 2022, the Ministry of Health declared a Sudan virus disease outbreak in Mubende District, Central Uganda. We describe the epidemiological characteristics and transmission dynamics. METHODS: For this descriptive study, cases were classified as suspected, probable, or confirmed using Ministry of Health case definitions. We investigated all reported cases to obtain data on case-patient demographics, exposures, and signs and symptoms, and identified transmission chains. We conducted a descriptive epidemiological study and also calculated basic reproduction number (R(o)) estimates. FINDINGS: Between Aug 8 and Nov 27, 2022, 164 cases (142 confirmed, 22 probable) were identified from nine (6%) of 146 districts. The median age was 29 years (IQR 20-38), 95 (58%) of 164 patients were male, and 77 (47%) patients died. Symptom onsets ranged from Aug 8 to Nov 27, 2022. The case fatality rate was highest in children younger than 10 years (17 [74%] of 23 patients). Fever (135 [84%] of 160 patients), vomiting (93 [58%] patients), weakness (89 [56%] patients), and diarrhoea (81 [51%] patients) were the most common symptoms; bleeding was uncommon (21 [13%] patients). Before outbreak identification, most case-patients (26 [60%] of 43 patients) sought care at private health facilities. The median incubation was 6 days (IQR 5-8), and median time from onset to death was 10 days (7-23). Most early cases represented health-care-associated transmission (43 [26%] of 164 patients); most later cases represented household transmission (109 [66%]). Overall R(o) was 1·25. INTERPRETATION: Despite delayed detection, the 2022 Sudan virus disease outbreak was rapidly controlled, possibly thanks to a low R(o). Children (aged <10 years) were at the highest risk of death, highlighting the need for targeted interventions to improve their outcomes during Ebola disease outbreaks. Initial care-seeking occurred at facilities outside the government system, showing a need to ensure that private and public facilities receive training to identify possible Ebola disease cases during an outbreak. Health-care-associated transmission in private health facilities drove the early outbreak, suggesting gaps in infection prevention and control. FUNDING: None. |
Understanding the delay in identifying Sudan Virus Disease: gaps in integrated disease surveillance and response and community-based surveillance to detect viral hemorrhagic fever outbreaks in Uganda, September 2022
Zalwango JF , Naiga HN , Nsubuga EJ , Akunzirwe R , Buhuguru R , Zalwango MG , Simbwa BN , Kizito SN , Kawungezi PC , Agaba B , Wanyana MW , Kabami Z , Ninsiima M , Zavuga R , King P , Kiggundu T , Nansikombi HT , Gonahasa DN , Kyamwine IB , Bulage L , Kwesiga B , Kadobera D , Migisha R , Ario AR , Harris JR . BMC Infect Dis 2024 24 (1) 754 BACKGROUND: Early detection of outbreaks requires robust surveillance and reporting at both community and health facility levels. Uganda implements Integrated Disease Surveillance and Response (IDSR) for priority diseases and uses the national District Health Information System (DHIS2) for reporting. However, investigations after the first case in the 2022 Uganda Sudan virus outbreak was confirmed on September 20, 2022 revealed many community deaths among persons with Ebola-like symptoms as far back as August. Most had sought care at private facilities. We explored possible gaps in surveillance that may have resulted in late detection of the Sudan virus disease (SVD) outbreak in Uganda. METHODS: Using a standardized tool, we evaluated core surveillance capacities at public and private health facilities at the hospital level and below in three sub-counties reporting the earliest SVD cases in the outbreak. Key informant interviews (KIIs) were conducted with 12 purposively-selected participants from the district local government. Focus group discussions (FGDs) were conducted with community members from six villages where early probable SVD cases were identified. KIIs and FGDs focused on experiences with SVD and Viral Hemorrhagic Fever (VHF) surveillance in the district. Thematic data analysis was used for qualitative data. RESULTS: Forty-six (85%) of 54 health facilities surveyed were privately-owned, among which 42 (91%) did not report to DHIS2 and 39 (85%) had no health worker trained on IDSR; both metrics were 100% in the eight public facilities. Weak community-based surveillance, poor private facility engagement, low suspicion index for VHF among health workers, inability of facilities to analyze and utilize surveillance data, lack of knowledge about to whom to report, funding constraints for surveillance activities, lack of IDSR training, and lack of all-cause mortality surveillance were identified as gaps potentially contributing to delayed outbreak detection. CONCLUSION: Both systemic and knowledge-related gaps in IDSR surveillance in SVD-affected districts contributed to the delayed detection of the 2022 Uganda SVD outbreak. Targeted interventions to address these gaps in both public and private facilities across Uganda could help avert similar situations in the future. |
Privacy preserving record linkage for public health action: opportunities and challenges
Pathak A , Serrer L , Zapata D , King R , Mirel LB , Sukalac T , Srinivasan A , Baier P , Bhalla M , David-Ferdon C , Luxenberg S , Gundlapalli AV . J Am Med Inform Assoc 2024 OBJECTIVES: To understand the landscape of privacy preserving record linkage (PPRL) applications in public health, assess estimates of PPRL accuracy and privacy, and evaluate factors for PPRL adoption. MATERIALS AND METHODS: A literature scan examined the accuracy, data privacy, and scalability of PPRL in public health. Twelve interviews with subject matter experts were conducted and coded using an inductive approach to identify factors related to PPRL adoption. RESULTS: PPRL has a high level of linkage quality and accuracy. PPRL linkage quality was comparable to that of clear text linkage methods (requiring direct personally identifiable information [PII]) for linkage across various settings and research questions. Accuracy of PPRL depended on several components, such as PPRL technique, and the proportion of missingness and errors in underlying data. Strategies to increase adoption include increasing understanding of PPRL, improving data owner buy-in, establishing governance structure and oversight, and developing a public health implementation strategy for PPRL. DISCUSSION: PPRL protects privacy by eliminating the need to share PII for linkage, but the accuracy and linkage quality depend on factors including the choice of PPRL technique and specific PII used to create encrypted identifiers. Large-scale implementations of PPRL linking millions of observations-including PCORnet, National Institutes for Health N3C, and the Centers for Disease Control and Prevention COVID-19 project have demonstrated the scalability of PPRL for public health applications. CONCLUSIONS: Applications of PPRL in public health have demonstrated their value for the public health community. Although gaps must be addressed before wide implementation, PPRL is a promising solution to data linkage challenges faced by the public health ecosystem. |
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