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Malaria Vaccine Trials in Tanzania Face Challenges from Aid Cuts
Trials of malaria vaccines in Tanzania have shown reductions in cases, according to local clinicians and residents. However, foreign aid cuts, particularly from the U.S., have impacted health programs. Scientists express concerns about funding for vaccine rollout and related research.
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Trials for malaria vaccines are underway in Tanzania, where the disease caused 9.4 million cases and 26,000 deaths in 2024. Worldwide, malaria deaths rose from 598,000 in 2023 to 610,000 in 2024, with three-quarters of fatalities among children under five.
Factors such as climate change and antimicrobial resistance contribute to this increase, according to global data. In the village of Mwavi in Tanzania's Bagamoyo District, residents report a decline in malaria infections over the past five years. Mgeni, a mother of five, stated that infections have fallen by about 90 percent.
The trial involved children, but it has also reduced malaria in adults by blocking parasite transmission. Dr Angela Gwakisa, the clinician overseeing the work in Bagamoyo District, confirmed a reduction in malaria cases based on data, with improvements after booster doses.
Amina, a resident and mother of two whose child participated, noted a significant decrease in illness frequency among children in the trial. The R21 vaccine works by preventing mosquitoes from becoming infective after biting infected individuals. Residents have expressed appreciation for the trial's impact, with one mother giving Dr Gwakisa 21 pineapples as a gift.
The trial is nearing completion, and results will be submitted to medical authorities for assessment.
health services rely on foreign aid, which has decreased, particularly from the U.S. and the U.K. The closure of programs by the U.S. Agency for International Development led to a loss of $216 million in aid to Tanzania, affecting 5,000 healthcare workers involved in HIV and malaria prevention.
