1. Laboratory of Viral Hepatitis, Mechnikov Research Institute of Vaccines and Sera, 105064 Moscow, Russia
2. Laboratory of Molecular Epidemiology of Viral Hepatitis, Central Research Institute of Epidemiology, 111123 Moscow, Russia
3. Belgorod Blood Center, 308007 Belgorod, Russia
4. Medical Faculty, Belgorod State National Research University, 308015 Belgorod, Russia
5. Gavrilov Moscow Blood Center, Moscow Health Department, 125284 Moscow, Russia
6. Sklifosovsky Research Institute for Emergency Medicine, Moscow Health Department, 129090 Moscow, Russia