1. Laboratory for Natural Focal Infections Epidemiology, Central Research Institute of Epidemiology, 111123 Moscow, Russia
2. Department of Epidemiology, Microbiology and Immunology, Altai State Medical University, 656038 Barnaul, Russia
3. Scientific Group of Biotechnology and Genetic Engineering, Central Research Institute of Epidemiology, 111123 Moscow, Russia
4. Institute of Public Health and Preventive Medicine, Altai State Medical University, 656038 Barnaul, Russia
5. Central Research Institute of Epidemiology, 111123 Moscow, Russia