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: ekushov_ve@vector.nsc.ru.
3 Department of Molecular Virology, State Research Center of Virology and Biotechnology "Vector", ABK 12A, Koltsovo, Novosibirsk 630559, Russia.
4 Regional Clinical Hospital No 2 - Center for Prevention and Control of AIDS and Infectious Diseases, Vladivostok 690011, Russia.
5 Regional Clinical Hospital No 2, Vladivostok 690011, Russia.