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Her work focuses on the molecular biology of the parasites that cause diseases such as leishmaniasis, sleeping sickness, Chagas disease, elephantiasis, and river blindness.
These blackfly usually dwell near fast-flowing African streams, so the disease is also called "river blindness".
By 1970, the community was described as a "forest village", with a relatively high level of infection by the parasitic worm Onchocerca volvulus, the causative agent of river blindness.