M. A. Koroleva
Central Research Institute of Epidemiology
Russian Federation

Maria А. Koroleva, Cand. Sci. (Med.), Senior Researcher, Laboratory for Epidemiology of Meningococcal Infection and Purulent Bacterial Meningitis

3a Novogireyevskaya Street, Moscow, 111123

M. I. Gritsay
Central Research Institute of Epidemiology

Maria I. Gritsay, postgraduate, Laboratory for Epidemiology of Meningococcal Infection and Purulent Bacterial Meningitis

3a Novogireyevskaya Street, Moscow, 111123

I. S. Koroleva
Central Research Institute of Epidemiology

Irina S. Koroleva, Dr. Sci. (Med.), Head of the Laboratory for Epidemiology of Meningococcal Infection and Purulent Bacterial Meningitis

3a Novogireyevskaya Street, Moscow, 111123

V. G. Akimkin
Central Research Institute of Epidemiology

Vasiliy G. Akimkin, Academician of the Russian Academy of Sciences, Dr. Sci. (Med.), Prof., Director

3a Novogireyevskaya Street, Moscow, 111123

A. A. Melnikova
Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing

Albina A. Melnikova, Cand. Sci. (Med.), Deputy Head, Department of Epidemiological Surveillance

Bldg 7, 18 Vadkovsky Lane, Moscow, 127994