Chart Shows Measles Spreading Exponentially in US

Measles cases in the US are growing exponentially. There are already 70% more confirmed cases in 2025 than in all of 2024.

Measles was declared eliminated in the US in 2000 due to high measles, mumps, and rubella (MMR) vaccination rates. In 2019, the US nearly lost its measles elimination status when outbreaks caused over 1,200 measles cases.

While the US still technically maintains its elimination status, measles cases continue to rise worldwide as childhood vaccination rates drop and more unvaccinated people travel to the US and elsewhere.

2025 has seen 483 confirmed measles cases so far across 19 states.

Texas has the biggest outbreaks

87% of all US measles cases are in Texas, which has had outbreaks in multiple counties.

Measles cases have also been confirmed in Alaska, California, Florida, Georgia, Kansas, Kentucky, Maryland, Michigan, Minnesota, New Jersey, New Mexico, New York, Ohio, Pennsylvania, Rhode Island, Tennessee, Texas, Vermont, and Washington.

Most cases are in unvaccinated children

The majority of cases are in children under 19, and almost all of them are unvaccinated or have an unknown vaccination status. Only 3% of cases have occurred in people with one or two doses of the MMR vaccine.

So far, there’s been one confirmed death caused by measles and one case under investigation because the person tested positive for measles after death. 70 people have been hospitalized.

You can protect yourself by getting a booster

Doctors recommend getting an MMR booster if you were vaccinated before 1968 since earlier versions of the vaccine weren’t as effective. You can get a booster if you don’t know your medical history, and children under 1 can also get early doses of the vaccine.

Measles is highly contagious and can live in the air for two hours. If you’re traveling, the CDC recommends being fully vaccinated two weeks beforehand, and monitoring for symptoms for three weeks after you return.