BACKGROUND: The prevalence of cardiometabolic risk factors may vary by disaggregated race and ethnicity categories, and by acculturation-related factors. We evaluated the association between nativity and length of US residence, and prevalence of diabetes, hypertension, and hypercholesterolemia by select disaggregated race and ethnicity groups. METHODS: We conducted a pooled cross-sectional study of 218 158 US adults from the Medical Expenditure Panel Survey (2013-2022). Nativity (US born, non-US born) and length of US residence (>/=15 years or <15 years) were used as select proxies for acculturation. Self-reported cardiometabolic risk factors included diabetes, hypertension, and hypercholesterolemia. RESULTS: Results showed substantial heterogeneity among both aggregated and disaggregated racial and ethnic groups. Nativity (US born versus non-US born) was significantly associated with increased hypertension prevalence among Hispanic adults (odds ratio [OR], 1.26 [95% CI, 1.15-1.39]), whereas among detailed categories the OR varied from 0.68 (95% CI, 0.51-0.93) among Puerto Rican adults to 1.34 (95% CI, 1.18-1.52) among Mexican adults. For the association between length of US residence and hypercholesterolemia, the OR for all Non-Hispanic Asian adults was 1.18 (95% CI, 0.92-1.51), whereas results varied in detailed categories from 1.00 (95% CI, 0.64-1.57) among Indian adults to 1.69 (95% CI, 1.08-2.64) among Chinese adults. CONCLUSION: The association between US nativity or length of US residence and cardiometabolic risk factors varies by disaggregated race and ethnicity among Hispanic and Non-Hispanic Asian adults. Future studies may evaluate comprehensive measures of acculturation and assess other race and ethnicity groups to inform tailored efforts to improve cardiometabolic risk factor prevention and treatment.

The objective of this analysis is to examine characteristics of very preterm (VPT), very low birth weight (VLBW) infants not admitted to neonatal intensive care units (NICU). In this cross-sectional study assessing VPT (<32 weeks gestation) and VLBW (<1500 grams) infants, we used birth records from the National Vital Statistics System, 2021. Crude and adjusted prevalence ratios (aPR) with modified Poisson regression models were used to calculate prevalence of infants not admitted to the NICU by selected characteristics. Among 38,693 VPT, VLBW infants, 10% were not admitted to the NICU. In the adjusted model, characteristics associated with a higher prevalence of not being admitted to the NICU compared with analytical reference groups included non-Hispanic Native Hawaiian/Other Pacific Islander (aPR = 1.61;95% confidence interval [CI]:1.13-2.29), gestational age 22-24 weeks (aPR = 1.17;CI:1.08-1.26), vaginal delivery (aPR = 1.83;CI:1.73-1.94), and 5-minute Apgar score of 0-3 (aPR = 3.48;CI:3.18-3.82). Exploration of reasons infants were not admitted to the NICU may elucidate strategies to address barriers.

Digital PCR (dPCR) systems offer high sensitivity and reproducibility without requiring external control standards. However, their performance against real-time reverse transcription-PCR (rRT-PCR) for detecting respiratory viruses remains unexplored in Ghana. We therefore evaluated the performance of a novel dPCR, Lab-On-An-Array (LOAA), for the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), respiratory syncytial virus (RSV), and influenza viruses type A (Flu A) and B (Flu B). A cross-sectional hospital-based study was conducted between August 2022 and January 2023 in Ghana's Ashanti and Savannah Regions. Oropharyngeal swabs from 356 participants with a median age of 19 years, presenting with suspected respiratory illness, were tested using LOAA and rRT-PCR. Viral RNA was extracted using a Qiagen Viral Mini Kit (Qiagen Diagnostics GmbH, Germany). LOAA and rRT-PCR tests were performed using Genoplexor COVID-19/Flu/RSV Detection Kit (Optolane Technologies Inc, South Korea) and FluoroType SARS-CoV-2/Flu/RSV kits (Hain Lifescience GmbH, Germany), respectively. LOAA's performance metrics were assessed using rRT-PCR as the gold standard. Overall positivity rates were 29.78% and 30.90% for LOAA and rRT-PCR, respectively. Compared to rRT-PCR, LOAA's sensitivity was 87.76% for RSV, 91.30% for SARS-CoV-2, 86.21% for Flu B, and 88.89% for Flu A. Positive predictive value was the highest for RSV (97.73%) and lowest for Flu A (61.54%); negative predictive values were >/=98.00% for all respiratory viruses. LOAA recorded an "almost perfect" agreement (kappa >/=0.88) with rRT-PCR for RSV, SARS-CoV-2, and Flu B and good agreement for Flu A (kappa = 0.72). LOAA is sensitive in detecting SARS-CoV-2, RSV, and Flu B infections; however, minor improvements for Flu A are required. IMPORTANCE: This study presents the potential of a digital PCR as a highly sensitive and reproducible tool for detecting respiratory viruses in Ghana, where robust diagnostic methods are essential for managing public health challenges. By evaluating the novel Lab-On-An-Array (LOAA) system, we provide its critical operational performance against the gold-standard rRT-PCR for detecting severe acute respiratory syndrome coronavirus 2, respiratory syncytial virus, and influenza viruses. Our findings show that LOAA demonstrates excellent agreement with rRT-PCR for most viruses, offering a promising alternative for respiratory virus surveillance and diagnosis. This research is particularly significant for resource-limited settings, as it supports the adoption of advanced molecular diagnostics to improve early detection and response to respiratory infections. Minor refinements for specific viruses, such as influenza A, could further enhance its utility in clinical and epidemiological applications.

BACKGROUND: Phthalates are endocrine-disrupting chemicals that can dysregulate hormonal systems supporting female sexual function (eg, estrogen interference). Female sexual function is important for positive sexual expression, fertility, and well-being but remains understudied in the context of environmental toxicants to which females are ubiquitously exposed. Identifying environmental determinants of female sexual dysfunction can inform exposure-reduction strategies and clinical practice to improve sexual health. AIM: We investigated associations between phthalate exposure and sexual function in a cohort of North American females. METHODS: We leveraged cross-sectional data from a subset of 21-45-year-old females trying to conceive enrolled in Pregnancy Study Online (n = 347) to assess associations between phthalate and phthalate alternative exposure and sexual function, measured on a modified version of the Female Sexual Function Index-6 (FSFI-6). We summed FSFI-6 responses (range = 2-30); lower scores reflected poorer function. We measured urinary concentrations of 18 phthalate and alternative metabolites using online solid phase extraction coupled with high-performance liquid chromatography isotope dilution tandem mass spectrometry. Given that the biomarkers were nonlinearly associated with FSFI-6 scores, we categorized creatinine-corrected biomarker concentrations in tertiles. We used multivariable linear regression to estimate mean differences (beta) with 95% confidence intervals (CIs) in FSFI-6 scores per tertile increase in biomarker concentrations, adjusting for hypothesized confounders. In secondary analyses, we considered individual FSFI-6 items (range = 1-5) as outcome variables. OUTCOMES: Female sexual function measured on the FSFI-6. RESULTS: Most biomarkers were not associated with FSFI-6 scores. Mono-n-butyl phthalate concentrations were weakly and non-monotonically associated with lower summed FSFI-6 scores (beta = -0.8, 95% CI = -1.8, 0.2) and orgasm scores (beta = -0.3, 95% CI = -0.7, 0.1) at the second (vs first) tertile, reflecting poorer sexual function. Mono-2-ethyl-5-carboxypentyl terephthalate concentrations were weakly associated with poorer scores for orgasm, while other biomarkers (notably, mono-carboxyisononyl phthalate) were associated with higher summed FSFI-6 and FSFI-6 item scores. CLINICAL IMPLICATIONS: Exposure to phthalates should be considered in clinical settings, particularly for females experiencing issues with sexual function. STRENGTHS AND LIMITATIONS: This study represents one of the first to assess associations of phthalate exposure and female sexual function, and we investigated associations in an established cohort with a validated measure of sexual function. We were limited by our sample size and cross-sectional study design. CONCLUSION: Although associations for most phthalate biomarkers were null, some were weakly associated with female sexual function, suggesting exposure to certain chemicals may affect female sexual function with implications for clinical practice and exposure reduction strategies.

OBJECTIVE: Chronic obstructive pulmonary disease (COPD), a progressive lung condition, is a leading cause of disability and death. Cigarette smoking and workplace exposures are important risk factors for COPD. To examine occupations with COPD deaths among decedents with usual lifetime employment in the construction industry. METHOD: The 2021-2022 National Vital Statistics System public use multiple cause-of-death data (cross-sectional) were analysed. RESULTS: Among 6.7 million decedents, 497 031 (10.3%) were employed in the construction industry during most of their life and of those, 11.7% (n=57 937) had COPD listed on the death certificate as the underlying or contributing cause of death. The highest numbers of COPD deaths were among adults 65 years and older (n=44 550), males (n=55 092), non-Hispanic white persons (n=50 903) and persons with </=high school education (n=46 621). Construction workers had 1.31 (95% CI 1.30 to 1.32) times the odds of COPD deaths as compared with non-construction workers. Within construction occupation groups, roofers (mortality OR (MOR) 2.31, 95% CI 2.10 to 2.55) drywall installers, ceiling tile installers and tapers (MOR 2.29, 95% CI 3.05 to 2.56); painters, paperhangers, pipelayers, plasterers and stucco masons (MOR 2.09; 95% CI 1.92 to 2.28) and insulation workers (MOR 2.00, 95% CI 1.66 to 2.41) COPD mortality risk was significantly increased and the mortality odds were twice or more as compared with the reference group (office and administrative support workers). CONCLUSIONS: Disparities in COPD mortality observed among construction industry workers may be addressed by reducing COPD risk factors, including cigarette smoking and COPD-related workplace exposures, and emphasising the importance of early diagnosis and disease management.

BACKGROUND: Interstitial cystitis/bladder pain syndrome (IC/BPS) is a complex, chronic condition affecting the urinary bladder. Symptoms commonly associated with IC/BPS include painful urination, pain during intercourse, a persistent or recurrent sensation of bladder discomfort or pressure that often worsens as the bladder fills and eases after urination, urgency, frequent urination with little warning, nighttime urination disrupting sleep, and burning or other unusual urinary sensations. These symptoms can profoundly impact emotional and mental health, hinder participation in daily activities, disrupt social interactions, and strain personal relationships. OBJECTIVE: This study aimed to compare the experiences of different races and ethnicities with IC/BPS regarding symptoms, diagnosis, treatment status, and treatment methods. We hypothesized that there would be differences in racial and ethnic minority groups. METHODS: A cross-sectional web-based survey was administered between June and August 2022 through the Interstitial Cystitis Association and the Inspire web-based health community. Eligible adults resided in the United States, self-reported IC/BPS symptoms, and completed the survey in English. The instrument gathered demographic information, details regarding age at symptom onset, formal diagnosis status, and treatment use. Validated symptom and problem indices (the O'Leary-Sant Interstitial Cystitis Symptom Index and Problem Index) captured symptom severity and quality-of-life impact. Comparative analyses, including Fisher exact and median tests, were conducted across racial or ethnic groups (minority or multiple-race vs White and Hispanic vs non-Hispanic), and multivariable logistic regression assessed predictors of race or ethnicity on IC/BPS diagnosis status and treatment outcomes. RESULTS: In total, 1631 individuals completed the survey. Racial or ethnic minority or multiple-race respondents constituted 11.6% (n=189) of the sample. Although IC/BPS symptom severity (Interstitial Cystitis Symptom Index or Interstitial Cystitis Problem Index scores) did not significantly differ by race or ethnicity, minority or multiple-race respondents were 50% less likely to have a formal medical diagnosis of IC/BPS than White respondents (adjusted odds ratio 0.50, 95% CI 0.30-0.83). Overall, 86.7% (n=1408) of participants reported having received a formal IC/BPS diagnosis, and the single strongest determinant of receiving any form of treatment was having a formal diagnosis (odds ratio 29.67, 95% CI 18.32-48.05). Over 25% (n=385) of all respondents reported using narcotic or opioid medications, indicating the challenging nature of IC/BPS symptom management. CONCLUSIONS: Minority or multiple-race participants were significantly less likely to have ever been diagnosed with IC/BPS by a health care professional, and those who were not diagnosed with IC/BPS were less likely to have used self-care behavioral and nonpharmacological treatments for their symptoms. Streamlining the diagnostic process and public health awareness campaigns outlining treatment options may help individuals manage IC/BPS symptoms.

BACKGROUND: Cervical cancer is the fourth most common cancer among women globally, disproportionately affecting those in low- and middle-income countries (LMICs). In 2020, World Health Organization (WHO) Member States endorsed the 2030 Global Strategy toward Elimination of Cervical Cancer, recommending expanded access to human papillomavirus (HPV) vaccination. However, gaps remain in understanding how LMICs can sustain high HPV vaccine coverage. Tanzania, an early adopter among LMICs, introduced HPV vaccination into the national immunization schedule for 14-year-old girls in 2018 and achieved >90 % two-dose coverage by 2023. This study evaluated HPV vaccine program implementation in Tanzania, capturing stakeholder perspectives on barriers, facilitators, and recommendations. METHODS: Stakeholders were interviewed in April 2024 in a concurrent mixed-methods evaluation. Participants included national and subnational immunization staff (n = 18), and health workers, teachers, and community influencers (n = 80). Four of 31 regions were purposively selected based on criteria including first-dose HPV coverage (2020-2022) and urban/rural distribution. Two health facilities were randomly selected from a list of facilities in each region, along with two schools administering the vaccine from each facility's catchment area. Quantitative data were analyzed descriptively in STATA v.18, and qualitative data analyzed in ATLAS.ti Web (v19.3.1). RESULTS: Political support, quality improvement cycles, and integration with existing systems were identified as contributing to program success. Funding gaps and staff shortages-particularly in regions with low HPV vaccination coverage-were among the reported barriers, along with poor coordination between health and education sectors and low community awareness. Recommendations included increasing government funding, strengthening cross-sector collaboration, training stakeholders, and expanding dissemination channels to improve demand and address vaccine hesitancy. CONCLUSIONS: Tanzania's experience offers lessons for HPV vaccination in similar contexts. Addressing key barriers through increased funding, improved coordination, and enhanced community engagement could improve HPV vaccination implementation in Tanzania and elsewhere, contributing to global cervical cancer elimination.

OBJECTIVE: Our objective was to assess paternal leave from work practices using a state-based representative sample of fathers with new infants. METHODS: Data were analyzed from the Pregnancy Risk Assessment Monitoring System for Dads, a population-based, cross-sectional study that surveyed fathers in Georgia 2 to 6 months after their infant's birth October 2018 through July 2019. Bivariate and multivariable analyses were conducted to assess factors associated with taking workplace leave. RESULTS: Among 261 respondents, 240 (92%) were employed while their infants' mother was pregnant. Of employed fathers, 73% reported taking any leave (paid or unpaid). Among fathers taking leave, 53% reported at least some paid leave. Overall, 64% reported taking <2 weeks of leave or no leave and 36% reported taking ≥2 weeks of leave. Fathers taking ≥2 weeks of leave had a higher prevalence of reporting any paid leave compared with those taking <2 weeks of leave or no leave (92% vs 31%; P < .001). Multivariable analyses revealed college-educated fathers were nearly twice as likely to report taking ≥2 weeks of leave compared with those with less education. Among employed fathers reporting taking any leave, factors influencing leave include wanting more leave but being unable to take time off (43%), experiencing financial barriers to taking leave (27%), and having too much work (24%). Factors influencing leave differed by any paid leave vs unpaid leave only. CONCLUSIONS: Despite known benefits of paternity leave, only 75% of fathers took leave, with most taking <2 weeks. Addressing factors influencing leave-taking, including availability of paid leave, may help support parents with new infants.

Guidelines recommend children maintain a healthy body mass index (BMI) and do physical activity. No population-based estimates exist for elevated BMI or insufficient physical activity among children with congenital heart conditions (CHC). We estimated the national prevalence of elevated BMI and insufficient physical activity among children with and without CHC. We analyzed cross-sectional, nationally representative data on 57,080 children aged 6-17 years from the National Survey of Children's Health, 2021-2022. Among children with (N = 1135) and without (N = 55,945) CHC, we estimated prevalence and 95% confidence intervals (CI) for caregiver-reported elevated BMI (≥ 85th percentile for sex and age) and insufficient physical activity (< 60 min of physical activity < 7 days/week). Using multivariable Cox proportional hazards models adjusted for age, sex, ethnicity/race, federal poverty level, and caregiver education, we approximated adjusted prevalence ratios (aPR) and CI for each outcome by CHC status and, separately, by demographics among children with CHC. Children with CHC had a similar prevalence of elevated BMI (31.5%, aPR = 0.97, CI 0.82-1.14) and a slightly higher prevalence of insufficient physical activity (84.0%, aPR = 1.05, CI 1.00-1.09) compared to children without CHC. Among children with CHC, elevated BMI was 1.5-1.6 times higher for Hispanic compared to non-Hispanic White children, those with lower compared to higher household incomes, and those with caregivers with ≤ high school compared to ≥ college education; there were no demographic differences in insufficient physical activity. Pediatricians and cardiologists can support patients with CHC in meeting BMI and physical activity recommendations to improve their long-term cardiovascular outcomes.

3D printing holds great promise to revolutionize pharmaceutical manufacturing, so for widespread clinical application, it is imperative to evaluate its safety and maximize its benefits. Herein, for the first time, particle emissions of the printing process of a model drug (fluorescein) were monitored in a test chamber to evaluate release. A filament extrusion-type 3D printer was used to make tablets from filaments loaded with fluorescein prepared by hot melt extrusion (HME) or diffusion (passive loading) techniques. Surface contamination of the printer was qualitatively documented. Average concentrations of fluorescein released into air during printing were below the analytical limit of detection for HME and 0.92 ± 0.20 ng/m(3) for diffusion. Particle yield from the aerodynamic particle sizer data (#/g extruded) during printing with HME filament (5.01 x 10(4)) was significantly lower (p < 0.05) compared with diffusion filament (1.07 x 10(6)). Mathematical modeling was used to predict where particles might deposit in the respiratory system if inhaled by a worker. Predictions showed larger fractions of particles deposited in the head and pulmonary (alveolar) regions from diffusion-loaded filament compared with HME, albeit non-significant. Fluorescein was transferred onto personal protective equipment (gloves) and printer surfaces, which indicated potential for dermal exposure and cross-contamination. Assuming our results are representative of active pharmaceutical ingredients, they support the importance of controls such as containment to minimize inhalation exposure and housekeeping to minimize dermal exposure and cross-contamination of tablets.

BACKGROUND: A Lyme disease (LD) vaccine is expected to become available soon. We aimed to understand recent trends in healthcare provider (HCP) willingness to recommend LD vaccination. METHODS: Cross-sectional surveys among HCPs were conducted in 2018 and 2022. We compared willingness to recommend LD vaccination by survey year and provider characteristics. RESULTS: Among 3005 HCPs, 70.5 % reported willingness to recommend LD vaccination. This proportion was lower in 2022 than in 2018 (68 % vs 73 %; p < 0.01) and did not differ significantly by provider medical specialty. More HCPs in states with high LD incidence were willing to recommend the vaccine compared to HCPs in neighboring or low-incidence states (p < 0.01). Vaccine safety was the most frequently reported consideration for recommending LD vaccination (73 %). CONCLUSIONS: HCP willingness to recommend LD vaccination decreased from 2018 to 2022. Vaccination education tailored to HCPs that address vaccine safety will be critical for a successful LD vaccination program.

BACKGROUND: Healthcare workers (HCWs) have been disproportionately affected by coronavirus disease 2019 (COVID-19). This study assessed HCW severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) seroprevalence trends and indicators' effectiveness for infection monitoring in the Philippine healthcare setting during 2021 and 2022-2023. METHODS: We obtained data on HCW demographics at 2 facilities, and COVID-19 symptoms recall and absenteeism at one facility. We collected and tested blood specimens with a SARS-CoV-2 spike and nucleocapsid protein-based serological assay. We calculated crude prevalence ratios (PRs) and 95% confidence intervals (CIs) for risk factors. RESULTS: A total of 253 HCWs were included. Seroprevalence of SARS-CoV-2 infection among HCWs was 34% from September to October 2021 and 92% from October 2022 to April 2023 during the Delta and the Omicron variant surges, respectively, at one facility. At the other facility, seroprevalence was 31% in September-October 2021. Of the 33 seropositive HCWs with questionnaire completed, 14 (42%) did not recall COVID-19-like symptoms in the past year. Serological evidence of SARS-CoV-2 infection was statistically more likely among HCWs who recalled COVID-19-like symptoms in the past year (PR, 2.69 [95% CI: 1.53-4.72]; P < .05). Of the seropositive HCWs, 7 (21%) had no hospital documentation of missed work. Of the 24 HCWs with a positive SARS-CoV-2 test, 12 (50%) tested because of symptoms, 4 (17%) tested after exposure, and 5 (21%) tested following employment screening. CONCLUSIONS: Self-reported symptoms may be used to track SARS-CoV-2 prior infections within resource-limited healthcare settings. Occupational health services should consider these findings when developing infection monitoring strategies among HCWs. Combining surveillance strategies may strengthen infection monitoring.

BACKGROUND: Resistance of Plasmodium falciparum to sulfadoxine-pyrimethamine threatens the antimalarial effectiveness of intermittent preventive treatment during pregnancy (IPTp) with sulfadoxine-pyrimethamine (ITPp-SP) in sub-Saharan Africa. We updated an aggregated-data meta-analysis to assess the associations between sulfadoxine-pyrimethamine resistance and the effectiveness of IPTp-SP to inform policy. METHODS: We searched databases (Jan 1, 1990, to June 8, 2024) for observational studies or trials reporting data on malaria, low birthweight (<2500 g), anaemia, and other outcomes by IPTp-SP dose and matched these by year and location with studies that reported on molecular markers of sulfadoxine-pyrimethamine resistance. Studies including only women with HIV or combined interventions were excluded. We evaluated how sulfadoxine-pyrimethamine resistance influenced the adjusted risk ratio (aRR) between three and two doses of IPTp-SP for various outcomes using Poisson mixed-effects models that allowed for non-linear relationships. Initially, we performed a threshold analysis, stratified by region, to identify the resistance levels most predictive of altered effect of IPTp-SP doses on malaria parasitaemia at delivery (peripheral or placental parasitaemia by any test), our primary outcome. These resistance strata were then used in all subsequent models for other outcomes. All analyses were adjusted for malaria transmission intensity, HIV infection, percentage of paucigravidae, and insecticide-treated net use. Performance of models was evaluated using cross-validation. The trial was registered with PROSPERO (CRD42021250359). FINDINGS: Overall, 122 studies involving 148 693 participants were included. For west and central Africa (69 studies comprising 63 745 participants), very low resistance was categorised as a prevalence of the dihydropteroate synthase (dhps) Lys540Glu mutation in the parasite population of less than 4%, and low resistance as a prevalence of Lys540Glu of 4% or higher. In east and southern Africa (53 studies comprising 84 948 participants), moderate resistance was categorised as a prevalence of the Lys540Glu mutation of less than 60% combined with a prevalence of the Ala581Gly mutation of less than 5%, high resistance as a prevalence of Lys540Glu of 60% or higher combined with a prevalence of Ala581Gly of less than 5%, and very high resistance as a prevalence of the Lys540Glu mutation of 60% or higher combined with a prevalence of Ala581Gly of 5% or higher. There was a marked trend towards lower efficacy of IPTp-SP on reducing malaria infection with increasing resistance levels. In west and central Africa, when comparing three versus two doses, the aRR was 0·71 (95% CI 0·65-0·78) in areas with very low resistance and 0·83 (0·72-0·95) in areas with low resistance (p=0·0144 for the difference between dose-response curves in very low vs low resistance). For east and southern Africa, the same trend was observed: the aRR was 0·63 (95% CI 0·57-0·69) in areas with moderate resistance, 0·89 (0·82-0·96) in areas with high resistance, and 0·93 (0·85-1·01) in areas with very high resistance (p<0·0001 for dose-response curves differences between moderate vs high and moderate vs very high resistance). This pattern was not seen for low birthweight. When comparing three versus two doses in west and central Africa, the aRR was 0·58 (95% CI 0·48-0·68) in areas with very low resistance and 0·56 (0·44-0·68) in areas with low resistance (p=0·72 for dose-response curves very low vs low resistance). For east and southern Africa, the aRR was 0·75 (95% CI 0·52-0·98) in areas with moderate resistance, 0·73 (0·69-0·78) in areas with high resistance, and 0·75 (0·63-0·87) in areas with very high resistance (p=0·80 for dose-response curves moderate vs high resistance; p=0·90 for moderate vs very high resistance). Dose comparisons in some resistance strata were limited by sample size. INTERPRETATION: IPTp-SP antimalarial efficacy is greatly reduced in very high resistance areas. However, it remains effective at reducing low birthweight in these areas, possibly through non-malaria effects on fetal growth. While IPTp-SP use should continue in high SP-resistance areas, alternative malaria preventive strategies are urgently needed in these areas. FUNDING: WHO and WorldWide-Antimalarial-Resistance-Network.

IMPORTANCE: Examining racial and ethnic disparities in pediatric COVID-19 hospitalizations is critical to inform public health efforts to reduce those disparities. OBJECTIVE: To characterize trends in pediatric COVID-19 hospitalizations by race and ethnicity from March 2020 to September 2023, focusing on recent epidemiologic findings (October 2022 to September 2023). DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study used data from the COVID-19 Hospitalization Surveillance Network (COVID-NET) including 13 555 hospitalizations among patients aged 17 years or younger with a laboratory-confirmed SARS-CoV-2 infection who are residents of the COVID-NET catchment area in 12 states, covering approximately 10% of the US population. EXPOSURE: Laboratory-confirmed SARS-CoV-2 infection within 14 days prior to or during hospitalization. MAIN OUTCOMES AND MEASURES: Pediatric COVID-19-associated hospitalization rates by race and ethnicity and characteristics associated with COVID-19-associated hospitalizations. RESULTS: Between March 2020 and September 2023, COVID-NET identified 13 555 pediatric hospitalizations (median patient age, 3.3 years [IQR, 0.6-12.5 years]; 7110 boys [52.5%]; 780 non-Hispanic Asian or Pacific Islander children [5.8%], 3837 non-Hispanic Black children [28.3%], 4131 Hispanic children [30.5%], and 4807 non-Hispanic White children [35.5%]). Hospitalization rates were 2.15 (95% CI, 2.01-2.34) times higher for Black children and 2.06 (95% CI, 1.91-2.23) times higher for Hispanic children compared with Asian or Pacific Islander children, who had the lowest rates. Despite overall decreased pediatric hospitalization rates between October 2022 and September 2023, higher rates of intensive care unit admissions among Black and Hispanic children persisted, at 1.88 (95% CI, 1.28-2.74) times higher for Black children and 2.13 (95% CI, 1.47-3.10) times higher for Hispanic children compared with Asian or Pacific Islander children. Among hospitalized children, 61.4% (95% CI, 57.0%-65.8%) of Black patients and 45.5% (95% CI, 41.9%-49.3%) of Hispanic patients had 1 or more underlying medical condition compared with 45.6% (95% CI, 42.1%-49.1%) of White children and 45.0% (95% CI, 41.9%-49.3%) of Asian or Pacific Islander children. Obesity (17.8%; 95% CI, 15.3%-20.5%) and neurologic disorders (15.2%; 95% CI, 13.7%-16.8%) were the most common conditions overall; 11.9% (95% CI, 9.1%-15.1%) of Black children had sickle cell disease, the fourth most common condition in this group. CONCLUSIONS AND RELEVANCE: This study found that among pediatric patients hospitalized with COVID-19, Black and Hispanic children were disproportionately more likely to be hospitalized for COVID-19 and experience severe disease compared with White and Asian or Pacific Islander children. A higher proportion of hospitalized Black children had underlying medical conditions. This study underlines the need for targeted interventions, particularly for children with underlying medical conditions, and the need for equitable access and use of vaccines and therapeutics for disproportionately affected populations.

INTRODUCTION: Timely access to stroke care reduces death and disability due to stroke. Studies have investigated disparities in access by sociodemographic characteristics but not comorbidity prevalence. We used updated data to assess both types of disparities in drive times to certified stroke centers nationwide. METHODS: We conducted a cross-sectional spatial analysis of drive time from each contiguous US census tract (N = 72,517), using population-weighted centroids, to any certified stroke care (n = 1,825) or advanced (ie, endovascular-capable) stroke care (n = 426), using 2022 data from multiple state and nationwide databases. We compared median comorbidity prevalence and sociodemographic characteristics for census tracts within versus beyond a 60-minute drive time, using US Centers for Disease Control and Prevention PLACES 2020 data. RESULTS: Median (interquartile range) drive time was 11.8 (7.6-21.6) minutes to any certified stroke care, and 23.0 (12.6-53.9) minutes to advanced stroke care. Approximately 20% of the US adult population (n = 49 million) resided in census tracts beyond a 60-minute drive from advanced stroke care; most (65%) were rural. Census tracts more than 60 minutes from advanced stroke care had significantly higher prevalence of stroke, high blood pressure, coronary heart disease, high cholesterol, diabetes, chronic kidney disease, fair or poor self-rated health status, smoking, and obesity. They also had higher poverty rates, lower educational attainment, lower median income, and higher proportions of non-Hispanic White people and people older than 65 years. CONCLUSION: Residents in census tracts lacking timely access to stroke care have higher prevalence of health risk factors. The results highlight areas where education, telehealth infrastructure, and facility placement could improve stroke systems of care.

IMPORTANCE: West Nile virus (WNV), a neurotropic flavivirus spread by Culex species mosquitoes, is the leading cause of mosquito-borne disease in the contiguous US. From 2014 to 2023, a mean of 1298 WNV neuroinvasive disease cases and 129 deaths were reported annually in the US. OBSERVATIONS: Almost all WNV infection occurs via mosquito bites, but transmission can rarely occur via blood transfusion, organ transplantation, and transplacental, perinatal, breastmilk, percutaneous, and conjunctival exposure. Since 2018, large WNV outbreaks have been reported in Europe, Tunisia, Israel, and the US. In 2021, the largest county-level US outbreak occurred in Arizona, with 1487 disease cases and 101 deaths reported. Based on seroprevalence surveys, approximately 80% of human WNV infections are asymptomatic, 20% cause a febrile illness (West Nile fever), and less than 1% cause neuroinvasive disease (eg, meningitis, encephalitis, acute flaccid myelitis). Mortality of patients with neuroinvasive disease is approximately 10% overall but is 20% in individuals 70 years or older and 30% to 40% in patients with hematologic malignancies, solid organ transplants, and those receiving B-cell-depleting monoclonal antibodies. Among patients hospitalized for WNV disease, 30% to 40% are discharged to long-term care facilities, and more than 50% have long-term sequelae such as fatigue, weakness, myalgia, memory loss, and depression. WNV transmission during solid organ transplantation was identified in 14 clusters in the US and Italy from 2002 to 2023. Since WNV screening of the US blood supply began in 2003, 14 cases of WNV transmission through blood transfusion have been reported. For patients with fever or neurologic symptoms during summer and fall months, WNV should be considered; IgM testing of serum and/or cerebrospinal fluid is recommended, followed by confirmatory neutralizing antibody testing in cases of possible exposure to cross-reacting flaviviruses, atypical presentation or death, or suspected unusual transmission modes such as organ transplantation. Reverse transcription-polymerase chain reaction testing is often more sensitive than IgM testing in patients with severe immunocompromise. There are no evidence-based therapies or human vaccines for WNV disease. Preventive methods include personal protective behaviors, such as using Environmental Protection Agency-registered mosquito repellents, wearing protective clothing, and limiting outdoor exposure from dusk to dawn, and community mosquito control measures. CONCLUSIONS AND RELEVANCE: WNV causes more than 1200 neuroinvasive disease cases and 120 deaths annually in the US. People who are older or immunocompromised are at higher risk of severe disease and death. Since there are no therapies or human vaccines, prevention relies on personal protective measures, WNV surveillance, and mosquito control interventions.

BACKGROUND: Viral load suppression among people living with HIV is a key strategy for reducing HIV transmission. A global target for HIV elimination aims to have 95% of people living with HIV diagnosed, 95% of people diagnosed on antiretroviral therapy (ART), and 95% viral load suppression for those on ART. We aimed to assess viral load non-suppression rates and associated factors among people living with HIV on ART in the Sughd region of Tajikistan. METHODS: We conducted a retrospective cohort study of adults (≥ 18 years old) who were newly diagnosed with HIV in 2013–2022 and had received ART for ≥ 6 months in the Sughd Region. Data were collected from the national electronic HIV case surveillance system and cross-referenced with paper medical and laboratory records. We conducted multivariable Quasi-Poisson regression to identify factors associated with viral load non-suppression (defined as ≥ 1000 copies/mL on their latest viral load test). RESULTS: Among the 1,871 people newly diagnosed with HIV who received ART for ≥ 6 months from 2013 to 2022, 11% were not virally suppressed. Over half (57%) were male, 38% were migrants, 73% were married, and the median age was 31 years (range 18–74). One-third (32%) had advanced HIV disease at diagnosis, 58% had been on ART for < 5 years, 94% were on a dolutegravir-containing regimen (DTG), and 9% died. Viral load non-suppression was 23% among people with stage IV at diagnosis and 43% among those not on DTG. Higher risk of viral load non-suppression was observed among male migrants and male nonmigrants compared to female nonmigrants (adjusted relative risk [aRR] and 95% confidence interval = 1.61 [1.13–2.31] and aRR = 1.48 [1.03–2.14], respectively), those who never-married vs. married (aRR = 1.56 [1.05–2.25]), those on ART for < 5 years vs. longer (aRR = 1.56 [1.05–2.29]), those initiating ART in 2013–2018 compared to 2019–2020 (aRR = 1.92 [1.28–2.88]), and those not on DTG (aRR = 3.86 [2.63–5.69]). CONCLUSIONS: Viral load suppression among people living with HIV in the Sughd Region remains below the global 95% target. Viral load suppression may improve with increased treatment support for people with late diagnosis or those newly initiating ART, with a special focus on men and migrants.

BACKGROUND: School health education promotes health knowledge and skills, yet measurement of teens' health skills is limited. We psychometrically assessed the perceptions of skills enhanced through school health education (PSE-SHE) measure. METHODS: Cross-sectional data (n = 471) were collected from teens using Teen and Parent Surveys of Health, conducted through AmeriSpeak Panels. The survey included one 5-item question assessing teens' perceptions of health skills enhanced through school health education-including getting health information and services, and understanding factors influencing health, communication, decision-making, and advocacy. For each PSE-SHE item, a 3-level categorization measure was examined (strongly agree/agree, neither agree nor disagree, and strongly disagree/disagree). Cronbach's alphas and confirmatory factor analysis (CFA) examined PSE-SHE measures' reliability and validity. Structural equation modeling used the CALIS procedure (SAS 9.4). RESULTS: High Cronbach's α = 0.91 was observed for the PSE-SHE measure, indicating internal consistency. Polychoric correlations among PSE-SHE items (0.68-0.81) were found. CFA confirmed substantial factor loadings (0.72-0.84, p < 0.0001) of each item on the latent factor (CFI = 0.98), supporting construct validity. IMPLICATIONS FOR SCHOOL HEALTH POLICY, PRACTICE, AND EQUITY: The reliable and valid PSE-SHE measure may inform skills-focused health education research. CONCLUSIONS: Psychometric results confirm the PSE-SHE measure is valid in capturing perceptions of skills enhanced through school health education.

Objective: To compare clinical and socioeconomic characteristics of U.S. Medicare beneficiaries overall and with diagnosed diabetes by age group (18–64 years and ≥65 years) and insurance type (traditional fee-for-service [FFS] vs Medicare Advantage [MA]) and to compare the prevalence of diabetes among beneficiaries by age group and type of insurance. Methods: In this retrospective, cross-sectional study from the U.S. Medicare Current Beneficiary Survey (MCBS), we combined data from 2017 to 2022 and conducted an unadjusted, pooled analysis of administrative and survey data, weighted to represent U.S. Medicare beneficiaries. We used logistic regression to assess difference by insurance type in care satisfaction. Results: Beneficiaries more likely to enroll in MA than FFS were the same groups at high risk of diabetes, including non-Hispanic Black (18–64: 21.2 % vs 15.9 %; ≥65: 11.4 % vs 6.5 %) and Hispanic (18–64: 14.4 % vs 8.9 %; ≥65: 11.0 % vs 5.4 %) populations, those with less than a high school education (≥65: 16.4 % vs 9.2 %) or annual income <$25,000 (18–64: 69.0 % vs 64.0 %; ≥65: 34.5 % vs 21.6 %), and full dual-eligible beneficiaries (≥65: 10.5 % vs 6.1 %). Beneficiaries with diabetes enrolled in MA did not differ from those enrolled in FFS in diabetes self-management or satisfaction with healthcare. Conclusions: Subgroups of people at highest risk of diabetes were more likely to enroll in MA. Our findings support studies reporting that people with diabetes self-select into MA, and their lack of difference in satisfaction between FFS and MA may support studies that report MA is no less effective than FFS in diabetes care. © 2025 The Authors

BACKGROUND: Nucleic acid-based assays are the diagnostic gold standard for filoviruses, including Ebola (EBOV) and Sudan (SUDV) viruses. However, outbreaks in areas with limited laboratory infrastructure highlight the need for simpler diagnostic tests that can be rapidly and safely used in the field. METHODS: We evaluated eight antigen rapid diagnostic tests (Ag-RDTs) for their ability to detect EBOV and SUDV. Analytical panels using virus cell slurries were used to assess limit of detection, and clinical samples were tested to determine sensitivity and specificity. RESULTS: Five Ag-RDTs detected EBOV and three detected SUDV, although clinical sensitivity was low (20-40 % for EBOV, 33 % for SUDV), improving only with higher viral loads. All assays demonstrated 100 % clinical specificity with no cross-reactivity. DISCUSSION: Although none of the evaluated Ag-RDTs are suitable for routine diagnosis, some may be useful in high viral load contexts such as cadaver testing. Our findings highlight the need to improve Ag-RDT sensitivity or develop high-sensitivity point-of-care molecular diagnostics.

Physical activity during pregnancy has numerous health benefits. This cross-sectional study examined the prevalence of nonoccupational physical activity among pregnant women aged 18 to 49 years in the United States. Using 2023 Behavioral Risk Factor Surveillance System data, we estimated the prevalence of meeting the aerobic guideline (≥150 minutes/week of moderate intensity-equivalent aerobic activity) and muscle-strengthening activity (≥2 episodes/week) among 2104 pregnant women aged 18 to 49 years in the United States and explored sociodemographic differences with adjusted logistic regression modeling. Overall, 49.0% (44.5%-53.4%) and 28.6% (24.9%-32.2%) of women met the aerobic activity guideline and participated in ≥2 episodes per week of muscle-strengthening activity, respectively. In adjusted analyses, we found sociodemographic differences for meeting the aerobic activity guideline (by age, race and ethnicity, and general health) and for participating in ≥2 episodes per week of muscle-strengthening activity (by general health). Opportunities exist to increase physical activity among pregnant women of diverse backgrounds through comprehensive, multilevel approaches so that more people can experience its health benefits.

A nationwide cross-sectional study led by the Agency for Toxic Substances and Disease Registry in collaboration with research and community partners, was designed to investigate health outcomes linked to per- and polyfluoroalkyl substances (PFAS) exposure among residents of communities with contaminated drinking water. The objective was to describe the study design, methods, participant demographics, and PFAS serum concentrations. From 2019 to 2023, adult (18+) and child (ages 4-17) participants were recruited from communities with past or ongoing PFAS contamination of drinking water across eight sites in California, Colorado, Massachusetts, Michigan, New Hampshire, New York, New Jersey, and Pennsylvania. Data on demographics, lifestyle factors, and residential, occupational, and medical history were collected via questionnaires. Extensive clinical tests assessed cardiometabolic, liver, thyroid, kidney, glycemic, and immune parameters. Neurobehavioral tests were administered to children (ages 5-17). PFAS quantified in serum included MeFOSAA, PFHxS, PFOS, PFOA, PFNA, PFDA, and PFUnDA. Serum, whole blood, and urine samples were banked for future analyses. The study enrolled 5826 adults (geometric mean age: 53.6 years; 60.2 % female; 77.2 % non-Hispanic White) and 710 children (geometric mean age: 10.7 years; 48.5 % female; 69 % non-Hispanic White). Compared with NHANES data (2017-2020), adults showed elevated geometric mean concentrations of PFHxS and PFOA; only PFHxS was elevated in children. These serum concentrations reflect a wide range of PFAS exposures in communities affected by contamination from firefighting activities and industrial emissions, and other sources. This large study is a valuable resource for exploring associations between PFAS exposure and health effects in adults and children.

BACKGROUND: In 2023, an estimated 36 million pregnancies occurred in malaria endemic sub-Saharan Africa, but only 44% received the WHO recommended ≥ 3 doses of intermittent preventive treatment (IPTp3). Group Antenatal Care (G-ANC) is a service delivery model associated with higher quality of and greater retention in ANC, in which pregnant women are enrolled into groups at their first ANC visit and subsequent care is provided in groups. A cluster-randomized controlled trial was conducted in Atlantique Department, Benin, to assess whether G-ANC improved ANC retention and IPTp3 uptake at community level. METHODS: Forty purposively selected health facilities (HF) were randomized 1:1 to control (individual ANC) or G-ANC. Cross-sectional household surveys to measure uptake of ANC and IPTp were conducted in each HF catchment area before and after implementation among randomly selected women who had given birth in the previous 12 months. Changes in coverage were assessed using a difference-in-difference approach, adjusting for HF clustering. RESULTS: At baseline (N = 1259), coverage of at least 4 ANC visits (ANC4) and IPTp3 was 52.8% and 48.0%, respectively, in the intervention catchment, and 44.9% and 49.4% in the control catchment. Coverage of ANC4 improved in both arms by endline (N = 1280), to 56.7% in the intervention and 46.1% in the control, but the difference in the increase was not significant between arms (p = 0.51). Coverage of IPTp3 increased non-significantly (p = 0.26), to 53.2% (intervention) and 49.7% (control). Overall, only 140 (10.6%) surveyed women reported participating in G-ANC. Participation improved coverage of both ANC4 (65.0% vs 50.5%, p = 0.002; odds ratio (OR) 1.9, 95% CI 1.4-2.5) and IPTp3 (64.0 vs 50.6%, p = 0.004; OR = 1.8, 95% CI 1.2-2.6). CONCLUSIONS: G-ANC increased ANC attendance and IPTp3 uptake among women who participated, but participation was limited. Understanding and addressing the barriers to participation is critical if G-ANC is to be used more widely to increase IPTp coverage. TRIAL REGISTRATION: PACTR202405487752509.

This cross-sectional study describes the level of naloxone information and availability and general attitudes about illicit drug use across different demographic groups in the US. | eng

INTRODUCTION: Given the increasing usage of vaping during pregnancy and limited longitudinal health-related data, there is an urgent need to assess the potential risks of vaping. AIMS AND METHODS: A cross-sectional study was conducted among pregnant UK adults (n = 140). Five study groups were purposively recruited: exclusive-smokers (n = 38), exclusive-vapers (former smokers) (n = 35), dual users of smoking and vaping (n = 25), dual users of smoking and nicotine replacement therapy (n = 10), and "never-users" of nicotine or tobacco products (n = 32). Sociodemographic, smoking, and vaping characteristics were assessed. Participants' urine samples were analyzed for biomarkers of exposure to tobacco alkaloids, and toxicants, including 14 volatile organic compounds (VOCs), tobacco-specific nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), heavy metals (cadmium, lead, chromium, nickel, copper, and tin) and a polycyclic aromatic hydrocarbon (2-naphthol). Regression analysis was used to compare biomarkers by group. RESULTS: Nicotine levels varied across product users, but not significantly. After controlling for confounders, for most VOCs, biomarker levels were similar for exclusive-vapers and never-users and significantly lower than for exclusive-smokers and any dual users. There were generally no significant differences between groups for 2-naphthol or heavy metals. For NNAL, cadmium and chromium, a high percentage of values were below the limit of detection, making analyses unreliable. CONCLUSIONS: During pregnancy, former smokers who are established exclusive vapers, but not dual users, had levels of selected VOCs that were substantially lower than those for exclusive smokers and comparable with those who have never used nicotine or tobacco products. IMPLICATIONS: Based on the biomarkers assessed in this study, during pregnancy, on average, exclusive-vapers are likely to have similar levels of exposure to selected VOCs as never-users and far lower levels than exclusive-smokers or dual-users (although dual-vaping and smoking may result in less exposure than exclusive-smoking). This provides preliminary information about exposure to vaping during pregnancy and suggests that, for some biomarkers, exclusive vaping is likely to result in lower exposures than exclusive smoking or dual-use. There may be exposure to other vaping toxicants that were not explored in this study. Studies are needed to assess pregnancy and birth outcomes as well as early life effects.

West Nile virus (WNV) causes thousands of arboviral infections in the United States each year. Patients with immune-compromising conditions and elderly people are at higher risk of severe WNV neuroinvasive disease (WNND). Despite its broad endemicity nationwide, no U.S. Food and Drug Administration-approved vaccine or therapeutic treatments exist. We summarized existing peer-reviewed literature on the preclinical development of monoclonal antibody (MAb) prophylaxis and therapeutics for the prevention and treatment of WNND. Five bibliographical databases (CINAHL, Cochrane Library, Embase, MEDLINE, and Scopus) were searched for applicable research studies performed from 1 January 1998 to 1 May 2025. In total, 2347 titles and abstracts were screened, 263 full-text publications reviewed, and 25 studies included. Studies included detailed preclinical development and evaluations of MAbs targeting the envelope (E) protein (n = 13), other viral proteins (n = 3), flaviviral cross-protective monoclonal antibodies (n = 4), and novel antibody configurations or delivery methods (n = 5). The most well-studied MAb, E16, targeting E- Domain III (E-DIII), was effective at inhibiting and treating WNND in experimental animal models. No work investigated ways to traffic therapeutic antibodies across the blood-brain barrier. This review summarizes the current research in the development of monoclonal antibody therapeutics for WNV and addresses gaps in the knowledge for future consideration.

The private sector in Tanzania has played an essential role in improving coverage and access to mosquito nets. This follow-up study assessed the overall market share for untreated and insecticide-treated nets (ITNs) and misleading or counterfeit ITN products in commercial markets. This study was conducted from March to April 2024 in ten regions in Tanzania. The study used mixed methods: (1) a quantitative survey among sampled outlets supported by photographic documentation of all net products and (2) key informant interviews of retailers and wholesalers. We assessed the relationship between market share and population access using ANOVA and Pearson correlation. No counterfeit or misleading nets were found, consistent with results from 2017, 2021, and 2022 surveys. Untreated nets dominated all markets, comprising 99% of all products observed and 99% of estimated net sales 3 months before the survey. Legitimate ITNs were crowded out from the studied markets. Leaked nets from free distributions were present but extremely limited (1%) and at their lowest level of the survey rounds. Untreated nets were more expensive than leaked ITNs for both regular- and queen-size nets. Despite ongoing efforts, increasing the share of legitimate ITNs remains a significant challenge in a context of large-scale public sector distributions.

Salmonella infections linked to seafood consumption have the potential to cause serious illness, with reported incidence of foodborne illness associated with contaminated seafood increasing in the past decade. While technological advancements over the last decade have made significant progress in the detection, reporting, and determining the source of illness from bacterial pathogens including Salmonella, prevention of these illnesses remains the same, basic sanitation control. We examined data from Salmonella outbreaks linked to fish and fishery products (excluding raw molluscan shellfish) during the period 2012-2021. In that time, there were five confirmed multistate Salmonella outbreaks, including 633 illnesses and 92 hospitalizations associated with fish and fishery products, and four additional multistate outbreaks with 88 illnesses and 12 hospitalizations where fish and fishery products were a suspect vehicle. We summarize common findings and challenges in the traceback investigations related to these outbreaks, particularly considering traceback challenges involving imported seafood, and discuss sanitary practices and regulatory approaches to prevent Salmonella outbreaks linked to fish and fishery products. Some of the most frequent insanitary observations included the safety of the water used in manufacturing food and ice; using water hoses to create overspray that may cross-contaminate food and food contact surfaces in the processing areas; and inadequate cleaning and sanitizing. Environmental contamination (e.g. from bird feces and insects) and improperly sanitized surfaces and cutting tools were also observed in some inspections. Sanitation controls are especially critical for raw ready-to-eat seafood and controls ensuring proper cooking and sanitary conditions and practices after cooking are critical for cooked product. These sanitation controls prevent foodborne outbreaks and recalls, safeguard consumers, and maintain trust in the food supply chain.

INTRODUCTION: HIV pre-exposure prophylaxis (PrEP) is an effective biomedical intervention for preventing HIV; however, PrEP adoption initially lagged across sub-Saharan Africa (SSA) and may have been affected by barriers to engagement in PrEP care. Stable, heterosexual HIV-serodifferent couples are a priority population of PrEP expansion efforts. We assessed factors associated with PrEP awareness and willingness among HIV-serodifferent couples in SSA to guide PrEP interventions for this population. METHODS: We conducted a cross-sectional analysis using pooled data from nationally representative, two-stage cluster sampling, HIV-focused household surveys completed during 2019-2022 in seven African countries. We analysed data from 1738 persons without HIV aged ≥15 years in stable, heterosexual HIV-serodifferent couples and included clinical information from their partners with HIV. Higher HIV risk was defined by unawareness of a partner's HIV-positive status or having a partner with an unsuppressed viral load (≥200 copies/ml). Lower HIV risk was defined by awareness of a partner's HIV-positive status and having a partner with a suppressed viral load (<200 copies/ml). We conducted multivariable logistic regression using survey weights and jackknife variance estimation to assess factors associated with PrEP awareness and willingness. RESULTS: Overall, 18.1% were aware of PrEP, 69.1% were willing to use PrEP and 5.1% had ever used PrEP. Forty-four percent had higher HIV risk. Higher odds of PrEP awareness were associated with being female (adjusted odds ratio [aOR]: 1.73; 95% confidence interval [CI]: 1.15-2.59), secondary education or higher (aOR: 6.42; 95% CI: 2.97-13.91) and lower HIV risk (aOR: 1.58; 95% CI: 1.00-2.48). Higher odds of PrEP willingness were associated with employment in the past year (aOR: 1.55; 95% CI: 1.01-2.37), previous PrEP awareness (aOR: 2.44; 95% CI: 1.36-4.36) and lower HIV risk (aOR: 1.70; 95% CI: 1.07-2.70). CONCLUSIONS: Persons in stable, heterosexual HIV-serodifferent couples with lower HIV risk were more aware of and willing to use PrEP than those with higher risk. Our findings highlight the importance of encouraging HIV status disclosure, educating about HIV-serodifference and PrEP, and providing PrEP linkage during HIV testing and prevention counselling to increase PrEP awareness, willingness and use among HIV-serodifferent couples in SSA.

BACKGROUND: Healthcare workers (HCWs) play a pivotal role in preventing healthcare-associated infections by adhering to infection prevention and control (IPC) practices. This study assessed IPC knowledge, attitudes, and practices (KAP) among HCWs at tertiary care hospitals in Bangladesh during the coronavirus disease 2019 pandemic. METHODS: From September 2020 to January 2021, semistructured questionnaires were administered to physicians, nurses, and cleaning staff at 11 tertiary care hospitals in Bangladesh. KAP components were classified into "good," "fair," and "poor" based on the frequency of favorable responses (>75%, 50%-75%, <50%). Multivariate logistic regression was used to assess the relationship between knowledge, attitudes, and self-reported practices. RESULTS: We enrolled 1728 HCWs, including 526 physicians (30.4%), 934 nurses (54.1%), and 268 cleaning staff (15.5%). Physicians and nurses demonstrated "good" IPC knowledge (median 94.8% and 96.6% favorable responses, respectively) and self-reported IPC practices (median 76.2% and 80.4% favorable responses). However, most cleaning staff exhibited "poor" IPC knowledge (median 47.3% favorable responses) and practices (21.3% favorable responses). Across all categories of HCWs, the median attitude score was "fair" (range 60.0%-71.2% favorable responses). Having a positive attitude toward IPC was associated with increased IPC knowledge (adjusted odds ratio 3.0, P < .001) and good IPC practices (adjusted odds ratio 16.3, P < .001). CONCLUSIONS: HCW's KAP toward IPC was found to be suboptimal, especially among cleaning staff. However, the strong association noted between favorable attitudes toward IPC and adherence to safe IPC practices demonstrates the need for hospital leadership to promote a positive IPC culture, in addition to training and resources, to improve IPC practices and enhance healthcare resiliency beyond the coronavirus disease 2019 pandemic.