Herd immunity: basic concept and relevance to public health immunization practices.
D000367:Age Factors; D003140:Communicable Disease Control; D004813:Epidemiology; D005190:Family; D005843:Geography; D006801:Humans; D007109:Immunity; D007114:Immunization; D008962:Models, Theoretical; D011153:Population; D011336:Probability; D011634:Public Health; D012574:Schools; D012959:Socioeconomic Factors