On the failure to eradicate measles.
D002675:Child, Preschool; D005380:Financing, Government; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D008457:Measles / Q000453:epidemiology / Q000517:prevention & control*; D008458:Measles Vaccine; D014481:United States; D014611:Vaccination
D008458:Measles Vaccine