Memory can be dangerously short. Measles once accounted for 2.6 million deaths globally every year. In the 1950s, 400 to 500 individuals in the United States died annually, with 3 to 4 million infected. With the discovery of a measles vaccine, the number of deaths plummeted to 110 000 deaths globally in 2017.1 Measles was officially eliminated from the United States in 2000. Yet, misinformation has influenced parents to refuse vaccination for their children. Most measles cases have occurred among unvaccinated children.