[1] St Petersburg Pasteur Inst Fed Serv Surveillance C, St Petersburg 197101, Russia
[2] Inst Appl Biol Res Guinea IRBAG, BP 75, Kindia 100, Guinea
[3] Ctr Int Rech Infect Trop Guinee, 400 BP, Nzerekore, Guinea
[4] Ekaterinburg Res Inst Viral Infect, State Res Ctr Virol & Biotechnol Vector, Fed Serv Surveillance Consumer Rights Protect & Hu, Ekaterinburg 620030, Russia