Archive · 31 May 2025
Measles Cases Rise in US: Texas, Colorado Report Outbreaks
Measles cases are going up a little in the United States.
There are now 1,088 cases, with new outbreaks in some places.
Texas has the most cases, but there are also outbreaks in Canada and Mexico.
Measles spreads easily through the air and can be prevented with a vaccine.
If you get measles, you can get very sick.
It's important to get vaccinated to protect yourself and others.
US measles cases rose to 1,088, up 42 from the previous week.
Texas has the highest number of cases, with a total of 738.
Colorado reported a new outbreak stemming from an international flight.
Other states with outbreaks include Kansas, Michigan, Montana, North Dakota, Ohio, Pennsylvania, and Tennessee.
Measles is a highly contagious airborne virus preventable through vaccination.
- Who
- The CDC reports the rise in cases; those affected are unvaccinated individuals and travelers.
- What
- Measles cases are increasing in the US.
- When
- The recent increase occurred within the past week; data is updated weekly.
- Where
- Across the US, with major outbreaks in Texas, Colorado, and multiple Canadian provinces.
- Why
- The virus is highly contagious and preventable by vaccination; cases and outbreaks in the US are traced to international travel and unvaccinated individuals.
- Total US Cases
- 1,088 confirmed cases
- Texas Cases
- 738 cases
- Oklahoma Cases
- 14 confirmed cases
- Colorado Cases
- 7 cases in 2025, 1 outbreak
- Measles Fatalities
- 2 deaths in Texas, 1 in New Mexico
- Ontario, Canada Cases
- 1,888 cases