title: Diphtheria: incidence trends and age-wise changes of immunity.
authors.forename: A
authors.initials: A
authors.lastname: Galazka
authors.forename: J
authors.initials: J
authors.lastname: Keja
mesh_terms: D000328:Adult; D002648:Child; D004165:Diphtheria / Q000453:epidemiology* / Q000276:immunology; D006801:Humans; D007114:Immunization; D008875:Middle Aged; D013548:Sweden; D013742:Tetanus / Q000276:immunology