A5006346519- HIV/AIDS Research and Interventions
- Adolescent Sexual and Reproductive Health
- HIV, Drug Use, Sexual Risk
- COVID-19 epidemiological studies
- SARS-CoV-2 and COVID-19 Research
- COVID-19 Clinical Research Studies
- Global Maternal and Child Health
- HIV/AIDS Impact and Responses
- Survey Methodology and Nonresponse
- Food Security and Health in Diverse Populations
- Syphilis Diagnosis and Treatment
- Cytomegalovirus and herpesvirus research
- Vaccine Coverage and Hesitancy
- HIV Research and Treatment
- Census and Population Estimation
- Viral gastroenteritis research and epidemiology
- Healthcare Policy and Management
- Pneumocystis jirovecii pneumonia detection and treatment
- SARS-CoV-2 detection and testing
ICAP Global Health
2021-2024
Columbia University
2021-2024
Statistics New Zealand
2017
ABSTRACT Background Cameroon was among the most affected African countries during first wave of COVID‐19 pandemic; however, true prevalence SARS‐CoV‐2 remains unknown. Methods From October to December 2020, we conducted a cross‐sectional, age‐stratified seroepidemiological survey at 30 purposively selected community‐based sites across Cameroon's 10 regional capitals, sampling 10,000 individuals aged 5 years or older. We employed parallel antibody testing algorithm (WANTAI ELISA and Abbott...
HIV and syphilis are common sexually transmitted infections in sub-Saharan Africa. We aimed to investigate the prevalence distribution of active while considering status, demographic characteristics, behavioural characteristics.
Abstract Many national statistics offices acknowledge that making better use of existing administrative data can reduce the cost meeting ongoing statistical needs. Stats NZ has developed a framework to help facilitate this reuse. The is an adapted Total Survey Error (TSE) paradigm for understanding how strengths and limitations different sets flow through design affect final output quality. Our includes three phases: 1) single source assessment, 2) integrated set 3) estimation assessment. We...
With the highest HIV incidence and prevalence globally, government of Eswatini started a substantial scale-up treatment prevention services in 2011. Two sequential large population-based surveys were conducted before after service expansion to assess impact national response. Cross-sectional, household-based, nationally representative samples adults, ages 18 49 years, sampled 2011 2016. We measured prevalence, (recent infection based on limiting antigen ≤1.5 optical density units RNA ≥1000...
Nationally representative surveys provide an opportunity to assess trends in recent human immunodeficiency virus (HIV) infection based on assays for HIV infection. We assessed incidence Kenya 2018 and among adolescents adults using nationally household conducted 2007, 2012, 2018. To trends, we defined a testing algorithm (RITA) that classified as recently infected (<12 months) those HIV-positive participants were the HIV-1 limiting antigen (LAg)-avidity assay without evidence of...
Measurement of mother-to-child HIV transmission through population-based surveys requires large sample sizes because low prevalence among children. We estimate potential improvements in sampling efficiency resulting from a targeted design.Eight countries sub-Saharan Africa with completed Population-based Impact Assessment (PHIA) as 2017.The PHIA used geographically stratified 2-stage design households sampled randomly selected census enumeration areas. Children (0-14 years age) were eligible...
Background: Uganda’s Integrated Child Health Day (ICHD) initiative aims to improve children’s access vaccinations. Although widely used as a catch-up vaccination strategy, the effectiveness of ICHD program in increasing immunization coverage, especially among vulnerable populations, has not been recently evaluated. This study assessed reach and uptake for immunizations Uganda. Methods: A mixed-methods evaluation was conducted three districts (Rakai, Kayunga, Bukedea) where ICHDs occurred....
Population-based HIV Impact Assessments (PHIAs) are national household (HH) surveys that provide diagnosis and CD4 testing with an immediate return of results. Accurate results improve HIV-positive participants' clinical care inform the effectiveness programs. Here, we present from PHIA were conducted in 11 countries sub-Saharan Africa between 2015 2018. All participants 2 to 5% HIV-negative offered Pima (Abbott, IL, USA) point-of-care (POC) tests. The quality test was ensured by conducting...
Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI
Cameroon was among the most affected African countries during first wave of COVID-19 pandemic; however, true prevalence SARS-CoV-2 remains unknown. From October-December 2020 we conducted a cross-sectional, age-stratified seroepidemiological survey at 30 purposively selected community-based sites across Cameroon’s 10 regional capitals, sampling 10,000 individuals aged 5 years or older. We employed parallel antibody testing algorithm (WANTAI ELISA and Abbot Architect) to improve both positive...