Update: measles outbreak--Chicago, 1989.
D000293:Adolescent; D000328:Adult; D002641:Chicago / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D007231:Infant, Newborn; D008457:Measles / Q000453:epidemiology* / Q000401:mortality / Q000517:prevention & control; D014611:Vaccination