V.F. PAVELKINA, R.Z. AL’MYASHEVA, N.P. AMPLEYEVА, Yu.G. USKOVA Mordovian State University named after N.P.Ogarev, 68 Bolshevistskaya St., Saransk, Russian Federation, 430005 Pavelkina V.F. — D. Med. Sc., Head of the Department of Infectious Diseases, tel. (8432) 55-16-63, e-mail: pavelkina@rambler.ru 
Almyasheva R.Z. — Cand. Med. Sc., Associate Professor of the Department of Infectious Diseases, tel. (8432) 55-16-63, e-mail: almiasheva.rimma@yandex.ru Ampleyeva N.P. — […]