 and the emergency department waiting room at Monument Health Rapid City on July 12th from approximately 5 p.m. to midnight. Monument Health's spokesperson says measles was almost completely eliminated with the MMR vaccine. However, there continues to be outbreaks throughout the world. He added that most people received the MMR vaccine when they were younger, and people who have been exposed to measles have lifetime immunity. Jack Cottle, Dakota Territory News. A former employee of the South Dakota Department of Social Services