No matter where you travel, make sure you and your family are protected against measles.

Measles is only a car ride away! Measles is a highly contagious virus. Around 90% of people who are exposed to a person with measles will become infected if they are not vaccinated. Because measles is so contagious, it easily crosses borders. Currently, measles outbreaks are happening in parts of the United States and Canada, especially in Ontario, and around the world. With spring and summer travel season approaching, anyone who is not protected can get measles while traveling and can easily spread it to others when they return home. Large measles outbreaks are possible when measles cases reach at-risk populations with low immunization rates against measles. The best way to protect against measles is to make sure you are up-to-date on immunization with the measles-mumps-rubella (MMR) vaccine.

The total number of measles cases in the United States in the first three months of 2025 has already surpassed the total number of measles cases in all of 2024. As of March 26, 2025, a total of 483 measles cases have been reported by twenty U.S. jurisdictions this year: Alaska, California, Florida, Georgia, Kentucky, New Jersey, New Mexico, New York, New York City, Pennsylvania, Rhode Island, Texas, Kansas, Oklahoma, Ohio, Maryland, Michigan, Tennessee, District of Columbia, Vermont and Washington; 442 of which occurred in New Mexico and Texas. Most of the 442 cases are among children who had not received the MMR vaccine. Additionally, the ongoing outbreak in Canada has reached over 600 cases with the majority (570 cases) occurring in Ontario.

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