1. State Research Center of Virology and Biotechnology VECTOR, Koltsovo, Novosibirsk Region, Russia;
2. Novosibirsk State Medical Academy, Novosibirsk, Russia;
3. First Municipal Clinical Infectious Hospital of Novosibirsk, Novosibirsk, Russia;
4. Stanford University, Palo Alto, California, USA;
5. University of North Carolina, Chapel Hill, North Carolina, USA