S.V. ANDREYEV, N.P. SETKO, L.G. VORONINA Orenburg State Medical Academy, 6 Sovetskaya St., Orenburg, Russian Federation, 460000  Andreyev S.V. — postgraduate student of the Department of Hygiene and Epidemiology, tel. +7-922-621-46-55, e-mail: eeyy@mail.ru Setko N.P. — D. Med. Sc., Professor, Head of the Department of Hygiene and Epidemiology, Vice Rector on Scientific and Clinical Work, tel. (3532) 77-62-21, […]