Definition for View source for MMR Vaccine

The '''MMR vaccine''' is an immunization vaccine against measles, mumps, and rubella (also called '''German measles'''). It is a mixture of live attenuated viruses of the three diseases, administered via injection. It was first developed by Maurice Hilleman while at Merck.

A licensed vaccine to prevent measles first became available in 1963, an improved measles vaccine in 1968. Vaccines for the mumps and rubella (German measles) became available in 1967 and 1969, respectively. The three vaccines (for mumps, measles, and rubella) were combined in 1971 to become the measles-mumps-rubella (MMR) vaccine.