A disease that the US eradicated 26 years ago is making a significant comeback, and the CDC warns that the nation might soon lose its measles-free designation. As of April 30, 2026, the CDC has verified 1,814 cases of measles this year, with 24 distinct outbreaks identified nationwide. Approximately 93 percent of these cases are linked to outbreaks, indicating a fast spread of the virus within communities. Active clusters are being reported in Texas, Utah, South Carolina, Florida, Arizona, and Ohio, primarily among unvaccinated children. Here’s what healthcare professionals advise every American to do now.