1. Central Research Institute of Epidemiology, Moscow, Russia
2. Kovalenko All-Russian Research Institute for Experimental Veterinary Medicine, Moscow, Russia
3. Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
4. Research Institute of Occupational Health, Moscow, Russia
5. Chumakov Federal Scientific Center for Research and Development of Immunobiological Products of Russian Academy of Sciences, Moscow, Russia
6. Izhevsk State Medical Academy, Izhevsk, Russia
7. Medical Association “Novaya Bolnitsa,” Yekaterinburg, Russia