MMR vaccine (Measles, Mumps, Rubella)

The MMR vaccine is a combined shot that protects against three contagious diseases: measles, mumps, and rubella (German measles). It works by stimulating the immune system to recognize and fight these viruses if encountered later. The vaccine is typically given in two doses during childhood and is highly effective at preventing these illnesses, which can cause serious health problems such as pneumonia, encephalitis, and birth defects. MMR vaccination not only safeguards individuals but also helps prevent outbreaks by maintaining community immunity, especially protecting those who cannot be vaccinated.