Since January 1, 2019, 981 individual cases of measles have been confirmed in 23 states. The number continues to grow every single week. This is the greatest number of cases reported in the U.S. since 1994 and since measles was declared eliminated in 2000. BCBSRI Chief Medical Officer Gus Manocchia joins host Jill Flaxington to discuss the severity of measles, how and why it has returned and the critical importance of vaccinations and herd immunity.