Measles Exposure: Immediate Steps and Vaccination Tips
What to Do If You've Been Exposed to Measles
With measles cases surging to 171 confirmed in nine U.S. states by mid-January 2026, following a record 2,242 in 2025, exposure risks are higher than ever.[1][2] This highly contagious virus, eliminated in the U.S. since 2000, threatens resurgence due to declining vaccination rates below the critical 95% threshold.[4] If exposed, act swiftly to protect yourself and others amid ongoing outbreaks in areas like Arizona, Florida, and Ohio.[2]
Immediate Steps After Exposure
Monitor for symptoms like high fever, cough, runny nose, red eyes, and a distinctive rash appearing 7-14 days post-exposure. Isolate immediately if symptoms develop to prevent spread, as measles lingers in the air for hours.[1] Contact your healthcare provider promptly; they may recommend post-exposure prophylaxis if within 72 hours of exposure, especially for unvaccinated individuals.[4] High-risk groups, including infants under five and the unvaccinated—95% of cases—face severe complications like hospitalization or pneumonia.[2]
Prevention and Vaccination
The MMR vaccine offers 93% protection with one dose and 97% with two, crucial amid three 2025 deaths in unvaccinated individuals.[1][4] Verify your status and vaccinate if needed; it's never too late for adults. Public health officials urge boosting immunity to halt transmission and preserve elimination status before outbreaks become endemic.[3]
