For citations:

Melnikov V.L., Mitrofanova N.N., Mitushkin A.E. Clinical and epidemiological characteristics of meningococcal infection morbidity in Penza Region for the period 2007-2019. Journal Infectology. 2021;13(3):39-45. (In Russ.) https://doi.org/10.22625/2072-6732-2021-13-3-39-45