• According to the CDC, If you’re unsure whether you’ve been vaccinated, you should first try to find your vaccination records. If you don’t have written documentation of MMR, MMRV, or measles vaccine, you should get vaccinated, especially if you’re traveling internationally.
• The MMR, MMRV, and standalone measles vaccines are safe. There is no harm in getting another dose if you may already be immune to measles, mumps, or rubella.
• If you received a measles vaccine in the 1960s, you may not need to be revaccinated. People who have documentation of receiving LIVE measles vaccine in the 1960s do not need to be revaccinated. People vaccinated prior to 1968 with either inactivated (killed) measles vaccine or measles vaccine of unknown type should be revaccinated. They should get at least 1 dose of live attenuated measles vaccine. This recommendation is intended to protect those who may have received the killed measles vaccine. The inactivated (killed) vaccine was available in 1963–1967 and was not effective.