For citations:
Turaeva N.V., Frolov R.A., Tsvirkun O.V., Gerasimova A.G. Characteristics of the epidemiological situation of mumps in the world atthe present stage. Epidemiology and Vaccinal Prevention. 2021;20(2):74-82. (In Russ.) https://doi.org/10.31631/2073-3046-2021-20-2-74-82