N.V. GALEYEVA, V.Kh. FAZYLOV, I.Kh. VALEYEVA Kazan State Medical University, 49 Butlerov St., Kazan, Russian Federation, 420012 Galeyeva N.V. — Assistant Lecturer of the Department of Infectious Diseases, tel. +7-919-640-16-62, e-mail: Nelli_04@mail.ru Fazylov V.Kh. — D. Med. Sc., Professor, Head of the Department of Infectious Diseases, tel. +7-917-254-89-97, e-mail: vildan47@rambler.ru Valeyeva I.Kh. — D. Biol. Sc., Seniour Researcher of Central Scientific Research […]