Rubella Infections: Up to 50% are subclinical; rubella during pregnancy can result in Congenital Rubella Syndrome (CRS).
Vaccines: Available as measles-mumps-rubella (MMR) or measles-mumps-rubella-varicella (MMRV) vaccines.
Immunity: Over 97% of individuals develop immunity after 1 dose of rubella vaccine.
Adverse Reactions: Generally mild and transient, including pain, redness at injection site, fever, and rash. Higher risk of fever and febrile seizures with MMRV in children 12-23 months.
Recommendations for Use
Routine Immunization:
Children: 1 dose of MMR or MMRV vaccine at 12-15 months of age.
Catch-up Immunization: 1 dose for susceptible children, adolescents, and adults.
High-Risk Groups:
Non-pregnant women of childbearing age, especially foreign-born.
People who work with children (e.g., child care workers, teachers).