Why might some people born before 1957 need to be vaccinated with MMR?
Live mumps vaccine was not used routinely before 1967. Before the vaccine was introduced, the age-specific incidence of the disease peaked among children aged 5-9 years. Therefore, most persons born before 1957 are likely to have been infected naturally between 1957 and 1977 and may be presumed to be immune, even if they have not had clinically recognizable mumps disease. However, birth before 1957 does not guarantee mumps immunity. Therefore, during mumps outbreaks, MMR vaccination should be considered for persons born before 1957 who may be exposed to mumps and who may be susceptible. Laboratory testing for mumps susceptibility before vaccination is not necessary. (For more information see page 15 of the MMWR article Vaccine Use and Strategies for Elimination of Measles, Rubella, and Congenital Rubella Syndrome & Control of Mumps: Recommendations of ACIP (.
Live mumps vaccine was not used routinely before 1967. Before the vaccine was introduced, the age-specific incidence of the disease peaked among children aged 5-9 years. Therefore, most persons born before 1957 are likely to have been infected naturally between 1957 and 1977 and may be presumed to be immune, even if they have not had clinically recognizable mumps disease. However, birth before 1957 does not guarantee mumps immunity. Therefore, during mumps outbreaks, MMR vaccination should be considered for persons born before 1957 who may be exposed to mumps and who may be susceptible. Laboratory testing for mumps susceptibility before vaccination is not necessary. (For more information see page 15 of CDC.
