1. Department of Bioengineering, State Research Center of Virology and Biotechnology “Vector”, Koltsovo, Russia.
2. Budgetary Health Care Institution of the Republic of Altai “Center for the Prevention and Control of AIDS”, Gorno-Altaysk, Russia.
3. HIV Biology and Variability Unit, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain.