MMR Vaccination: How often, for whom, how safe?

What is the MMR vaccination? The MMR vaccination is a triple vaccination that simultaneously protects against infection with measles, mumps and rubella viruses. It is a live vaccination: the MMR vaccine contains measles, mumps and rubella viruses that are still capable of reproducing but have been weakened. These can no longer trigger the respective disease. … MMR Vaccination: How often, for whom, how safe?