The Semliki Forest virus is an alphavirus found in central, eastern, and southern Africa. It was first isolated from mosquitoes in the Semliki Forest, Uganda by the Uganda Virus Research Institute in 1942 and described by Smithburn and Haddow. It is known to cause disease in animals and humans.

The Uganda Virus Research Institute (UVRI) is a medical research institute owned by the Uganda government that carries out research on communicable diseases in man and animals, with emphasis on viral transmitted infections. UVRI is a component of Uganda National Health Research Organization (UNHRO), an umbrella organization for health research within Uganda.