Marburg virus has been found in five cave-dwelling fruit-eating bats in three districts in Sierra Leone (Moyamba, Koinadugu, and Kono).The infected bats were sampled near caves in Moyamba (Fakunya Chiefdom), Koinadugu (Wara Wara Bafodia Chiefdom), and Kono (Lei Chiefdom).
This discovery was made and reported simultaneously to the Government of Sierra Leone by Njala University with funding from the US Centers for Disease Control and Prevention and the PREDICT project led by the University of Makeni and University of California, Davis with funding from USAID.