1. Central Scientific Research Laboratory, Northern State Medical University, Arkhangelsk, Russia
2. Department of Epidemiology and Modern Vaccination Technologies, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
3. West Kazakhstan Marat Ospanov Medical University, Aktobe, Kazakhstan
4. Department of Public Health and Health Policy, Al Farabi Kazakh National University, Almaty, Kazakhstan
5. Department of Internal Medicine, Medical University Astana, Nur-Sultan, Kazakhstan
6. Norwegian University of Science and Technology, Trondheim, Norway
7. Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway