title: [Epidemiology of meningococcal infection].
mesh_terms: D000293:Adolescent; D002353:Carrier State / Q000453:epidemiology; D002648:Child; D006801:Humans; D008585:Meningitis, Meningococcal / Q000453:epidemiology; D008589:Meningococcal Infections / Q000453:epidemiology*; D012621:Seasons; D014586:USSR
vernacular_title: Epidemiologiia meningokokkovoĭ infektsii.