Role of the natural immunity to diphtheria in preventing an outbreak of the disease in the community.
D002648:Child; D002675:Child, Preschool; D004165:Diphtheria / Q000276:immunology / Q000517:prevention & control*; D004196:Disease Outbreaks / Q000276:immunology / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007113:Immunity, Innate; D007223:Infant; D008297:Male