Surveillance of measles since the vaccination campaign.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D018563:Disease Notification; D004739:England / Q000453:epidemiology; D006801:Humans; D017589:Immunization Programs / Q000592:standards*; D008457:Measles / Q000453:epidemiology* / Q000517:prevention & control / Q000635:transmission; D012409:Rubella / Q000517:prevention & control; D012463:Saliva / Q000821:virology; D014852:Wales / Q000453:epidemiology