1 Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", ABK 12A, Koltsovo., Novosibirsk 630559, Russia.
2 Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", ABK 12A, Koltsovo., Novosibirsk 630559, Russia. Electronic address: sivay_mv@vector.nsc.ru.
3 Department of Molecular Virology, State Research Center of Virology and Biotechnology "Vector", ABK 12A, Koltsovo, Novosibirsk 630559, Russia.
4 Krasnoyarsk Regional Center for Prevention and Control of AIDS, Karl Marks Street, 45, Bld 1, Krasnoyarsk 660049, Russia.