Measles—one of the world’s most contagious illnesses—is now surging again. In the European Union, over 130,000 cases have been reported since 2024, and in the United States, where the virus was eliminated in 2000, it is reemerging amid rising vaccine hesitancy and growing clusters of under-vaccinated communities.
Click through to learn how measles spreads, what symptoms to watch for, and how to stay protected.