Table 3.

Percentages of Children Seropositive for Measles, Mumps, or Rubella, Before and After MMR Vaccination

Before (%)After (%)
Measles321/386  (83)386/386  (100)
Mumps241/386  (62)367/386  (95)
Rubella190/386  (49)385/386  (100)
  • No child seropositive before vaccination converted to seronegativity.