1. Institute of Systematics and Ecology of Animals of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.
2. Department of Microbiology and Immunology, New York Medical College, Valhalla, New York.
3. The Rockefeller University, New York, New York.
4. Ivanovsky Institute of Virology of the Federal Research Center of Epidemiology and Microbiology of N.F. Gamaleya of the Russian Ministry of Health, Moscow, Russia.
5. Federal Research Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency of Russia, Moscow, Russia.