Failure of vaccinated children to transmit measles.
D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000517:prevention & control*; D006801:Humans; D007484:Iowa; D008457:Measles / Q000235:genetics / Q000517:prevention & control*; D008458:Measles Vaccine; D014611:Vaccination
D008458:Measles Vaccine