Acceptability, Feasibility, and Uptake of COVID-19 Antigen Rapid Diagnostic Self-Testing at the Community Level in Tanzania.

The rapid diagnosis of coronavirus disease 2019 (COVID-19) is critical for comprehensive public health response strategies, and self-testing with antigen rapid diagnostic tests (Ag-RDTs) presents opportunities to test in hard-to-reach communities. Therefore, we evaluated the acceptability, feasibility, and uptake of Ag-RDT self-testing at the community level in Tanzania. From June to October 2022, symptomatic individuals or those with recent contact with a known or suspected COVID-19 patient were offered assisted testing and self-testing within mining communities and at transport hubs.

Awareness and Uptake of HIV Preexposure Prophylaxis and Postexposure Prophylaxis Among College Students With Sexual Experiences: Institutional-Based Cross-Sectional Study.

Background: Evidence has shown that HIV prevalence among young people, especially college students, has increased disproportionately. Preexposure prophylaxis (PrEP) and postexposure prophylaxis (PEP) are two of the most effective ways to prevent HIV, which are vital for college students with sexual experiences who have sexual risks.

Objective: To provide evidence for effective intervention to reduce the risk of HIV infection among young students, this study aimed to analyze the awareness and uptake of HIV PrEP and PEP among college students with sexual experiences.

Pilot deployment of a community health care worker in distributing and offering the COVID-19 AgRDT in Tanzania.

A pilot implementation of the rapid diagnostic test program was performed to collect evidence of the feasibility, acceptability, and uptake of the COVID-19 AgRDT in Tanzania. We conducted a prospective cross-sectional study in the community to provide quantitative details of the pilot implementation of the antigen rapid diagnostic test (AgRDT) in Tanzania. This study was undertaken between March 2022 and September 2022.

What Proportion of East African Refugees Report Musculoskeletal Problems? A Cross-sectional Survey.

Background: Musculoskeletal conditions are the leading cause of disability worldwide and disproportionally affect individuals in low-income and middle-income countries. There is a dearth of evidence on musculoskeletal problems among refugees, 74% of whom reside in low-income and middle-income countries.

Questions/purposes: (1) What proportion of refugees in Nyarugusu Camp, Kigoma, western Tanzania, are affected by musculoskeletal problems and what are the characteristics of those individuals? (2) What are the characteristics of these musculoskeletal problems, including their causes, location, and duration? (3) What forms of healthcare do those with musculoskeletal problems seek, including those for both musculoskeletal and nonmusculoskeletal problems?

Methods: We conducted a cross-sectional study among refugees in Nyarugusu Camp, using the Surgeons OverSeas Assessment of Surgical Need tool.

Acceptability and uptake of oral HIV self-testing among rural community members in Tanzania: a pilot study.

New strategies are needed to improve HIV testing rates in Tanzania, particularly among adult men. We sought to investigate if HIV oral self-testing would increase HIV testing uptake in Tanzanian rural community homes. The study design was a prospective community-randomized pilot study, in two matched villages with similar characteristics (intervention and control villages) Before data collection, we trained village health workers and research assistants for one week.

Reasons for referral and referral compliance among Congolese and Burundian refugees living in Tanzania: a community-based, cross-sectional survey.

Objectives: In order to prevent overburdening of higher levels of care, national healthcare systems rely on processes of referral, including for refugee populations which number 26 million globally. The goal of this study is to use data from a population-based household survey to describe patterns of referral services among a population of Congolese and Burundian refugees living in Tanzania.

Design: Cross-sectional survey using cluster randomised sampling.

Prevalence of pediatric surgical problems among east African refugees: estimates from a cross-sectional survey using random cluster sampling.

Importance: Surgery is a foundational aspect to high functioning health care systems. In the wake of the Lancet Commission on Global Surgery, previous research has focused on defining the burden of surgical conditions among a pediatric population, however these studies often fail to include forced migrant or refugees. The goal of this study was to estimate the prevalence of pediatric surgical conditions among refugees in east Africa.

Access to Health Services Among Forced Migrants in Tanzania: A Cluster Randomized Cross Sectional Study of 3560 Congolese and Burundian Refugees.

Despite significant advances in the understanding of the global burden of surgical disease, limited research focuses on access to health and surgical services among refugees, especially in east Africa. The goal of this study was to describe patterns of access to transportation to health services among Congolese and Burundian refugees in Tanzania. We utilized cluster random sampling to perform a large, cross-sectional study in Nyarugusu refugee camp, Tanzania using an adapted version of the Surgeon Overseas Assessment Tool (SOSAS).

Population Pharmacokinetics of Antimalarial Naphthoquine in Combination with Artemisinin in Tanzanian Children and Adults: Dose Optimization.

The combination antimalarial therapy of artemisinin-naphthoquine (ART-NQ) was developed as a single-dose therapy, aiming to improve adherence relative to the multiday schedules of other artemisinin combination therapies. The pharmacokinetics of ART-NQ has not been well characterized, especially in children. A pharmacokinetic study was conducted in adults and children over 5 years of age (6 to 10, 11 to 17, and ≥18 years of age) with uncomplicated malaria in Tanzania.

Untreated Surgical Problems Among East African Refugees: A Cluster Randomized, Cross-Sectional Study.

Objective: The goal of this study was to estimate the prevalence of surgical conditions among refugees in East Africa.

Background: Surgery is a foundational aspect to high functioning health care systems. In the wake of the Lancet Commission on Global Surgery, previous research has focused on defining the burden of surgical conditions in low- and middle-income countries.

Role of human Pegivirus infections in whole Plasmodium falciparum sporozoite vaccination and controlled human malaria infection in African volunteers.

Background: Diverse vaccination outcomes and protection levels among different populations pose a serious challenge to the development of an effective malaria vaccine. Co-infections are among many factors associated with immune dysfunction and sub-optimal vaccination outcomes. Chronic, asymptomatic viral infections can contribute to the modulation of vaccine efficacy through various mechanisms.

Increase of Dose Associated With Decrease in Protection Against Controlled Human Malaria Infection by PfSPZ Vaccine in Tanzanian Adults.

Background: A vaccine would be an ideal tool for reducing malaria's impact. PfSPZ Vaccine (radiation attenuated, aseptic, purified, cryopreserved Plasmodium falciparum [Pf] sporozoites [SPZ]) has been well tolerated and safe in >1526 malaria-naive and experienced 6-month to 65-year-olds in the United States, Europe, and Africa. When vaccine efficacy (VE) of 5 doses of 2.

Safety and Differential Antibody and T-Cell Responses to the Sporozoite Malaria Vaccine, PfSPZ Vaccine, by Age in Tanzanian Adults, Adolescents, Children, and Infants.

In 2016, there were more cases and deaths caused by malaria globally than in 2015. An effective vaccine would be an ideal additional tool for reducing malaria's impact. Sanaria PfSPZ Vaccine, composed of radiation-attenuated, aseptic, purified, cryopreserved (Pf) sporozoites (SPZ) has been well tolerated and safe in malaria-naïve and experienced adults in the United States and Mali and protective against controlled human malaria infection with Pf in the United States and field transmission of Pf in Mali, but had not been assessed in younger age groups.

Causative agents and antimicrobial resistance patterns of human skin and soft tissue infections in Bagamoyo, Tanzania.

Few epidemiological studies have been carried out to assess the aetiology and antimicrobial susceptibility patterns of pathogens giving rise to skin and soft tissue infections (SSTIs) in sub-Saharan Africa. In the present study from six healthcare facilities in Bagamoyo, Tanzania, wound swabs from outpatients with SSTIs were analysed by a suite of methods, including microbiological culture techniques, matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry and resistance testing. Among 185 patients with SSTIs, 179 (96.

Safety, Immunogenicity, and Protective Efficacy against Controlled Human Malaria Infection of Sporozoite Vaccine in Tanzanian Adults.

We are using controlled human malaria infection (CHMI) by direct venous inoculation (DVI) of cryopreserved, infectious (Pf) sporozoites (SPZ) (PfSPZ Challenge) to try to reduce time and costs of developing PfSPZ Vaccine to prevent malaria in Africa. Immunization with five doses at 0, 4, 8, 12, and 20 weeks of 2.7 × 10 PfSPZ of PfSPZ Vaccine gave 65% vaccine efficacy (VE) at 24 weeks against mosquito bite CHMI in U.

Prevalence and assessment of malnutrition among children attending the Reproductive and Child Health clinic at Bagamoyo District Hospital, Tanzania.

Background: Malnutrition has long been associated with poverty, poor diet and inadequate access to health care, and it remains a key global health issue that both stems from and contributes to ill-health, with 50 % of childhood deaths due to underlying undernutrition. The purpose of this study was to determine the prevalence of malnutrition among children under-five seen at Bagamoyo District Hospital (BDH) and three rural health facilities ranging between 25 and 55 km from Bagamoyo: Kiwangwa, Fukayosi, and Yombo.

Methods: A total of 63,237 children under-five presenting to Bagamoyo District Hospital and the three rural health facilities participated in the study.

Comparison of bioavailability between the most available generic tablet formulation containing artemether and lumefantrine on the Tanzanian market and the innovator's product.

Background: Existence of anti-malarial generic drugs with low bioavailability marketed on sub-Saharan Africa raises a concern on patients achieving therapeutic concentrations after intake of such products. This work compared bioavailability of one generic tablet formulation with innovator's product. Both were fixed dose combination tablet formulations containing artemether and lumefantrine.

Clinical performance of an automated reader in interpreting malaria rapid diagnostic tests in Tanzania.

Background: Parasitological confirmation of malaria is now recommended in all febrile patients by the World Health Organization (WHO) to reduce inappropriate use of anti-malarial drugs. Widespread implementation of rapid diagnostic tests (RDTs) is regarded as an effective strategy to achieve this goal. However, the quality of diagnosis provided by RDTs in remote rural dispensaries and health centres is not ideal.

First results of phase 3 trial of RTS,S/AS01 malaria vaccine in African children.

Background: An ongoing phase 3 study of the efficacy, safety, and immunogenicity of candidate malaria vaccine RTS,S/AS01 is being conducted in seven African countries.

Methods: From March 2009 through January 2011, we enrolled 15,460 children in two age categories--6 to 12 weeks of age and 5 to 17 months of age--for vaccination with either RTS,S/AS01 or a non-malaria comparator vaccine. The primary end point of the analysis was vaccine efficacy against clinical malaria during the 12 months after vaccination in the first 6000 children 5 to 17 months of age at enrollment who received all three doses of vaccine according to protocol.