Colorado Confirms First Measles Outbreak of 2025 as Cases Reach Numbers Not Seen in Nearly 30 Years

CDC steps up measles travel warning after spread in airplane

The CDC has received at least 62 reports of measles cases this year that were infectious during air travel.

Colorado confirms first measles outbreak of 2025 as cases reach numbers not seen in nearly 30 years

An Arapahoe County adult vaccinated against measles who tested positive for the virus may have exposed people at several locations across the Denver metro area, state health officials said Thursday.

Southern Alberta's 472 confirmed measles cases 'tip of the iceberg,' health official says

As southern Alberta battles its worst measles outbreak in decades, some doctors are warning the virus is more rampant than the case counts show and they're now struggling to keep up with demand.