title: Measles targets and herd immunity.
authors: Petre
authors: P
authors: Jones
mesh_terms: D000293:Adolescent; D002648:Child; D004196:Disease Outbreaks; D004198:Disease Susceptibility / Q000276:immunology; D006801:Humans; D032521:Immunity, Herd / Q000276:immunology*; D007114:Immunization; D008457:Measles / Q000453:epidemiology / Q000276:immunology*; D014852:Wales / Q000453:epidemiology