Why are mumps and measles included in one vaccine? Why not immunize for diseases separately?
Currently, there is no single-component mumps vaccine available in Canada. Combined measles, mumps, rubella (MMR) vaccine is the only mumps vaccine available. Until approximately five years ago there were various vaccine combinations for measles and mumps in use in Canada. Q4. Why are two doses of mumps-containing vaccine recommended for high-risk adults? Certain adults are considered at a higher risk of contracting mumps because they do not have adequately immunity to the disease. It is assumed that most people over approximately 40 years of age have natural immunity through exposure to the mumps virus in widespread circulation prior to the introduction of mumps immunization programs. The mumps vaccine was licensed in Canada (1969) and subsequently provinces and territories introduced mumps-containing vaccine programs. However, adolescents and young adults vaccinated with only one dose of the vaccine prior to the introduction of the two-dose MMR schedule in 1996-97 may have had vaccin
