A.I. FAZULZYANOVA, V.Kh. FAZYLOV Kazan State Medical University, 49 Butlerov St., Kazan, Russian Federation, 420012  Fazulzyanova A.I. — Cand. Med. Sc., Associate Professor of the Department of Infectious Diseases, tel. (843) 267-80-99, e-mail: al-faz@mail.ru Fazylov V.Kh. — D. Med. Sc., Professor, Head of the Department of Infectious Diseases, tel. (843) 267-80-71, e-mail: vildan47@rambler.ru The article presents results of a survey of […]