Last year, cases of measles—a serious, vaccine-preventable disease that’s highly contagious—jumped by 79% around the world. Most of them were in children. That trend is continuing this year, threatening to reverse an impressive 73% drop in measles deaths worldwide from 2000 to 2018. Cases in the U.S. are climbing, too. In just the first two months of 2024, 35 cases have already been reported in 15 states including California, Minnesota, Florida, New York, and Louisiana; in 2023, 58 cases were reported over the entire year. [time-brightcove not-tgx=”true”] Why are measles cases taking off, and how can people protect themselves? Why measles cases are climbing Not enough kids are getting vaccinated.