Ebola, COVID-19 and mpox - some of the illnesses caused by germs that jump from animals to humans. In the Central African Republic, researchers are searching for the origins of these zoonotic diseases. Frédéric Singa is a WWF veterinarian working in the Dzanga-Sangha Protected Areas in the Central African Republic. He captures bats, collects samples from gorilla droppings, and talks to people with diseases to better understand which pathogens are circulating in the forest. As part of his research, Singa also plans to regularly test bushmeat sold in local markets, but to do so he needs the community to be on his side. Will he manage to convince skeptical hunters and market vendors to support his project? The samples Singa collects are analyzed in a field laboratory in the rainforest and sent abroad, including to Germany, for further testing.