MMR Vaccine (Measles, Mumps, and Rubella Vaccine)

The MMR vaccine is a combined immunization that protects against three highly contagious diseases: measles, mumps, and rubella. It works by introducing weakened versions of these viruses into the body, prompting the immune system to develop defenses without causing illness. Once vaccinated, the immune system can recognize and fight these viruses if exposed in the future, greatly reducing the risk of infection and its potential complications. The MMR vaccine is safe, effective, and has significantly decreased the incidence of these diseases worldwide. It is typically administered during childhood as part of routine immunization schedules.