27/08/2026
A 12-year study of endangered chimpanzees in Uganda has revealed persistent schistosomiasis infections, highlighting the need for long-term disease surveillance to protect endangered wildlife.
Researchers from Liverpool School of Tropical Medicine (LSTM) and international partners worked closely with Ngamba Island Chimpanzee Sanctuary and research facility in Lake Victoria to follow almost 50 rescued chimpanzees.
Despite annual treatment with praziquantel, chimpanzees continued to be reinfected. The findings suggest that treatment alone is unlikely to protect animals living in areas where schistosomiasis is endemic.
Led by Dr Alexandra Juhász, the research will inform conservation efforts in Africa and beyond by emphasising the need for a One Health approach that combines more frequent treatment, regular health monitoring, and environmental management.
Professor Russell Stothard, senior author of the study, said: “This is the first time anywhere in the world that schistosomiasis infections have been followed in chimpanzees over such a long period.”
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A 12-year LSTM study in Uganda reveals persistent schistosomiasis and progressive liver damage in endangered chimpanzees, despite annual treatment.