1. FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia
2. D.I. Ivanovsky Institute of Virology Division of N.F. Gamaleya National Research Center of Epidemiology and Microbiology of the Ministry of Health of the Russian Federation, Moscow 123098, Russia
3. Infectious Clinical Hospital No. 1 of the Moscow City Health Department, Moscow 125310, Russia
4. Department of Infectious Diseases in Children, Faculty of Pediatrics, Pirogov Russian National Research Medical University, Moscow 117997, Russia
5. Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow 119991, Russia