For citations:
Kostinov M.P., Nastaeva N.Yu., Vlasenko A.E., Kostinova A.M., Mashilov K.V., Simonova E.G. Influenza and Pneumococcal Vaccination of Healthcare Workers during a Pandemic Reduces the Risk and Severity of COVID-19 in Vaccinated. Epidemiology and Vaccinal Prevention. 2023;22(4):56-66. (In Russ.) https://doi.org/10.31631/2073-3046-2023-22-4-56-66