A5004947007- Reproductive tract infections research
- Cervical Cancer and HPV Research
- Adolescent Sexual and Reproductive Health
- Syphilis Diagnosis and Treatment
- Pediatric health and respiratory diseases
- Herpesvirus Infections and Treatments
- Menstrual Health and Disorders
- Reproductive System and Pregnancy
- Global Health and Surgery
- Facial Trauma and Fracture Management
- Retinal and Optic Conditions
- Global Maternal and Child Health
- Ocular Surface and Contact Lens
- Retinal Imaging and Analysis
- Dermatology and Skin Diseases
- Ocular Disorders and Treatments
- Ocular Diseases and Behçet’s Syndrome
- Leprosy Research and Treatment
- Ophthalmology and Visual Health Research
- Travel-related health issues
- Virology and Viral Diseases
- Traumatic Ocular and Foreign Body Injuries
- Ophthalmology and Visual Impairment Studies
- Blood donation and transfusion practices
- COVID-19 Impact on Reproduction
University of Jos
2015-2025
West African College of Physicians
2024
Jos University Teaching Hospital
2006-2022
Ophthalmology Associates (United States)
2021
Sightsavers
2021
University of Cape Town
2018-2020
Groote Schuur Hospital
2019
To complete the baseline trachoma map worldwide by conducting population-based surveys in an estimated 1238 suspected endemic districts of 34 countries.A series national and sub-national projects owned, managed staffed ministries health, conduct house-to-house cluster random sample evaluation units, which generally correspond to "health district" size: populations 100,000-250,000 people. In each unit, we invite all residents aged 1 year older from h households c clusters be examined for...
We undertook a Grand Challenges in Global Eye Health prioritisation exercise to identify the key issues that must be addressed improve eye health context of an ageing population, eliminate persistent inequities health-care access, and mitigate widespread resource limitations.Drawing on methods used previous studies, we multi-step recruitment strategy assemble diverse panel individuals from range disciplines relevant global all regions globally participate three-round, online, Delphi-like,...
Background Facial cleanliness and sanitation are postulated to reduce trachoma transmission, but there no previous data on community-level herd protection thresholds. We characterize associations between active trachoma, access improved facilities, water sources for the purpose of face washing, with aim estimating or Methods findings used cluster-sampled Global Trachoma Mapping Project 884,850 children aged 1–9 years from 354,990 households in 13 countries. employed multivariable...
In collaboration with the health ministries that we serve and other partners, set out to complete multiple-country Global Trachoma Mapping Project. To maximize accuracy reliability of its outputs, needed in-built, practical mechanisms for quality assurance control. This article describes how those were created deployed. Using expert opinion, computer simulation, working groups, field trials, progressively accumulated in-project experience, external evaluations, developed 1) criteria where...
Background Trichiasis is present when one or more eyelashes touches the eye. Uncorrected, it can cause blindness. Accurate estimates of numbers affected, and their geographical distribution, help guide resource allocation. Methods We obtained district-level trichiasis prevalence in adults for 44 endemic previously-endemic countries. used (1) most recent data a district, if than estimate was available; (2) age- sex-standardized corrections historic estimates, where raw were (3) adjusted using...
Purpose Population-based prevalence surveys are essential for decision-making on interventions to achieve trachoma elimination as a public health problem. This paper outlines the methodologies of Tropical Data, which supports work undertake those surveys.
Background In northern Nigeria, trachoma is an important public health problem, but there are currently few population-based data on prevalence of disease and no formal control programs. Methodology / Principal Findings Kano state, we conducted a cross-sectional survey using multistage cluster random sampling, combining examination for clinical signs application questionnaires assessing potential household-level risk factors. A total 4491 people were examined in 40 clusters, whom 1572 aged...
Background: There has been discussion regarding the definition of clinical sign trachomatous trichiasis (TT) for purposes determining elimination trachoma as a public health problem, and whether should include presence scarring (TS). Methods: A multi-country comparative cross-sectional study was conducted in settings with varying burdens Ethiopia, Uganda Nigeria to determine if TS grading collected from cases by field graders surveys using simplified scheme are comparable tarsal conjunctival...
Summary Objective To determine the personal and environmental risk factors associated with trachoma in pre‐school children Yobe state, Nigeria. Methods Total of 639 aged 1–5 from 27 villages were examined their households for clinical signs trachoma. Personal independently determined by an observer while examination was being performed. Results The prevalence active 35.7% (95% CI; 32.0–39.6) disease boys similar to girls. highest 2–3 years age. presence flies on face (OR 4.14; CI 2.72–6.29)...
Purpose: We sought to determine the prevalence of trachoma in 44 Local Government Areas (LGAs) Kano State, Nigeria.Methods: A population-based survey was conducted each LGA. used a two-stage systematic and quasi-random sampling strategy select 25 households from clusters All consenting household residents aged 1 year above were examined for trachomatous inflammation–follicular (TF), inflammation–intense (TI) trichiasis.Results: State-wide crude TF persons 1–9 years 3.4% (95% CI 3.3–3.5%),...
Background Trachoma is the leading infectious cause of blindness. To reduce transmission, water, sanitation, and hygiene (WaSH) improvements are promoted through a comprehensive public health strategy. Evidence supporting role WaSH in trachoma elimination mixed it remains unknown what coverages needed to effectively transmission. Methods/Findings We used g-computation estimate impact on prevalence trachomatous inflammation—follicular among children aged 1–9 years (TF 1-9 ) when hypothetical...
To assess the prevalence of several parasitic infections in Kiribati, dried blood spots collected during trachoma surveys two major population centers 2015, 2016, and 2019 were tested using multiplex bead-based serologic assays to detect IgG antibodies against four pathogens public health interest: Toxoplasma gondii (T. gondii), Taenia solium solium), Strongyloides stercoralis (S. stercoralis), Toxocara canis canis). In Kiritimati Island, seroprevalences T. recombinant antigen for detection...
Abstract Background Trachoma, a neglected tropical disease, remains significant public health concern in many regions, particularly sub-Saharan Africa and Yobe State, Nigeria. One approach for elimination involves administering tetracycline eye ointment (TEO) to children <6 months of age as part annual mass drug administration (MDA), aligning with the World Health Organization's ‘A’ component SAFE (Surgery, Antibiotics, Facial hygiene Environmental sanitation) strategy trachoma...
Purpose: To determine the prevalence of trachoma in each 25 local government areas (LGAs) Niger State, Nigeria.Methods: A population-based cross-sectional survey was conducted State LGA between March and April 2014, as part Global Trachoma Mapping Project (GTMP). GTMP protocols were used planning conduct surveys. Using probability proportional to size, clusters selected; these clusters, households enrolled for survey. All residents aged 1 year older examined by GTMP-certified graders...
Objectives To determine the prevalence of diabetes mellitus (DM), diabetic retinopathy (DR) and sight-threatening conditions among persons with DM aged 50 years older in Sohag governorate Upper Egypt. Design Population-based, cross-sectional survey using standardised Rapid Assessment Avoidable Blindness addition Diabetic Retinopathy module methodology. Settings Egypt where 68 clusters were selected probability proportional to population size. Households compact segment technique....
To determine the prevalence and types of trachoma in all persons resident Yobe state, Nigeria establish baseline data for monitoring evaluation control programmes.A population based cross-sectional survey 27 villages' selected on probability proportional to size. Three thousand, three hundred fifty seven residing these villages were examined with a x2.5 magnifying binocular loupe trachoma. Trachoma was graded according World Health Organisation grading scheme.Three thousand thirty five...
Purpose: To determine the local government area (LGA)-level prevalence of trachoma in all 34 LGAs Katsina State.Methods: A population-based survey was conducted each LGA State, using Global Trachoma Mapping Project methodology. We used a 3-stage cluster random sampling strategy to select 25 households from clusters. examined residents selected aged 1 year and older for clinical signs trachomatous inflammation–follicular (TF), inflammation–intense trichiasis, World Health Organization (WHO)...
Purpose: To determine the prevalence of trachomatous inflammation – follicular (TF) and trichiasis in each 20 local government areas (LGAs) Bauchi State, Nigeria.Methods: We undertook a population-based survey LGA employing Global Trachoma Mapping Project methodology. used 2-stage, systematic quasi-random sampling strategy. Using probability proportional to size, we selected 25 clusters, which households were by random walk. All residents 1 year older examined for TF, intense, trichiasis,...
Purpose: To determine the need or otherwise for establishment of a trachoma elimination program in Gombe State, Nigeria, by estimating population-based prevalence each Local Government Area (LGA) Gombe.Methods: Using multi-stage, systematic, random, and quasi-random sampling approach Global Trachoma Mapping Project support, we selected 25 clusters LGA. In cluster, households all consenting residents aged 1 year older were examined trachomatous inflammation–follicular (TF) trichiasis, using...
To prepare for global elimination of trachoma by 2020, the World Health Organization (WHO) recommends mapping at district-level to enable planning activities in affected populations. The aim our study was provide data on each local government area (LGA) Kaduna State, Nigeria, as such were previously unavailable.As part Global Trachoma Mapping Project (GTMP), a population-based cross-sectional survey conducted 23 LGAs between May and June 2013. protocols GTMP used.The prevalence trachomatous...
Purpose: To determine the prevalence of trachoma in all suspected endemic districts Malawi.Methods: A population-based survey conducted 16 evaluation units from 12 Malawi (population 6,390,517), using standardized Global Trachoma Mapping Project (GTMP) protocol. 2-stage cluster-random sampling design selected 30 households each clusters per unit; residents aged 1 year and older were examined for evidence follicular (TF), intense trachomatous inflammation (TI), trichiasis (TT).Results: Four...
Whilst previous work has identified clustering of the active trachoma sign "trachomatous inflammation—follicular" (TF), there is limited understanding spatial structure trachomatous trichiasis (TT), rarer, end-stage, blinding form disease. Here we use community-level TF prevalence, information on access to water and sanitation, large-scale environmental socio-economic indicators model variation in TT prevalence Benin, Cote d'Ivoire, DRC, Guinea, Ethiopia, Malawi, Mozambique, Nigeria, Sudan...