N.V. GALEEVA1, I.V. NIKOLAEVA1, M.R. GATAULLIN2, B.SH. FATKULLIN2, YU.М. SOZINOVA2, A. YU. KAZANCEV2, G.S. SHARIFULLINA2, A.F. AHMETZYANOVA2  1Kazan State Medical University, Kazan 2Republic Clinical Hospital for Infectious Diseases named after A.F. Agafonov, Kazan  Contact details: Galeeva N.V. — PhD (Medicine), Associate Professor of the Department of Infectious Diseases Address: 49 Butlerov St., 420012 Kazan, Russian Federation, tel.: +7 (843) 268-80-72, e-mail: nelli_04@mail.ru […]