"The documents at our disposal confirm that the US military-biological presence on the African continent is increasing rapidly," Major General Aleksey Rtishev told a briefing on Tuesday.
The United States deployed branches of naval military medical center in Ghana and Djibouti, Rtishev added.
"Active work in the region is being carried out by research organisations of the US Department of Defence. For example, branches of the military medical center of the naval forces are located in Ghana and Djibouti, where active work is being carried out in natural foci of diseases, isolation and sequencing of pathogens," Rtishev said.