A. A. Malashenko
North-western State Medical University named after I.I. Mechnikov; K.A. Rauchfus Children's City Multidisciplinary Clinical Center for High Medical Technologies
Russian Federation

Anastasiya A. Malashenko –  fourth year graduate student of the department of epidemiology, parasitology and disinfectology.

Tel.: 8(812)578-75-82.

B. I. Aslanov
North-western State Medical University named after I. I. Mechnikov
Russian Federation

Batyrbek  I. Aslanov  – Dr. Sci. (Med.), professor of the department of epidemiology, parasitology and disinfectology.

Tel.: 8(812)543-13-21.

V. V. Nechaev
North-western State Medical University named after I. I. Mechnikov
Russian Federation

Vitaly V. Nechaev – Dr. Sci. (Med.), professor of the department of infectious diseases.

Tel.: 8(812)717-60-51.