For citations:

Kostyukova N.N., Bekhalo V.A. Pneumococcal Polysaccharide Conjugated Vaccines and the Problem of Changing Circulating Serotypes of Pneumococcus. Epidemiology and Vaccinal Prevention. 2023;22(5):110-120. (In Russ.) https://doi.org/10.31631/2073-3046-2023-22-5-110-120