Overview of MMR Immunization

The MMR immunization is a combined preventive measure against three highly contagious viral diseases: measles, mumps, and rubella. Measles can cause severe respiratory illness and complications such as pneumonia and encephalitis. Mumps is characterized by painful swelling of the salivary glands and can lead to complications like meningitis or infertility in males. Rubella, while usually mild in children, poses a serious risk to unborn babies if contracted by pregnant women, potentially causing congenital disabilities.

This immunization works by exposing the immune system to weakened forms of these viruses, prompting it to develop protective antibodies without causing the actual diseases. Typically administered in two doses—first at around 12-15 months of age and a second dose between 4-6 years—it provides long-lasting immunity. The widespread use of this combined approach has significantly reduced the incidence and severity of these illnesses worldwide.