title: [Epidemiologic observations of pertussis and parapertussis carrier state].
mesh_terms: D001885:Bordetella Infections / Q000453:epidemiology*; D002353:Carrier State / Q000453:epidemiology*; D002648:Child; D006801:Humans; D014917:Whooping Cough / Q000453:epidemiology
vernacular_title: Epidemiologicheskie nabliudeniia za bakterionositeliami pri kokliushe i parakokliushe