The United States Army Medical Research Directorate-Africa (USAMRD-A) â previously known as the "U.S. Army Medical Research Unit-Kenya (USAMRU-K)" â is a "Special Foreign Activity" of the Walter Reed Army Institute of Research headquartered in Nairobi, Kenya.
The unit was established in 1969 and operates under a cooperative agreement with the Kenya Medical Research Institute. The unit conducts research on infectious diseases of military and global public health importance, including malaria, trypanosomiasis, and leishmaniasis, arboviruses, HIV/AIDS, and other emerging infectious diseases. USAMRD-A serves as the headquarters for a network of research laboratories across Africa.