Dr Oleg Yurin has been working in the field of infectious diseases since 1980, since 1988 he has been engaged in HIV infection (clinical course of the disease, clinical classification, antiretroviral therapy, chemoprophylaxis of mother-to-child transmission, post-exposal and pre-exposal prophylaxis of HIV infection, development of national guidelines for the treatment and prevention of HIV infection and related diseases, clinical trials of new antiretroviral drugs and their use schemes.He is a member of National Scientific Society of Infectious Debiases of Russia, EACS, Euroguidelines in Central and Eastern Europe Network Group.