Boulder Measles Case Puts Denver-Metro Transit Riders on Alert as Colorado Cases Hit 15-Year High
A fully vaccinated Boulder resident has become Colorado's 15th measles case of 2025, prompting health officials to warn thousands of Denver-metro commuters who may have been exposed on popular transit routes between Boulder and downtown Denver.
The latest case, confirmed by state health officials on Friday, marks an alarming milestone for Colorado communities, with more infections reported this year than in the entire previous decade, according to the Colorado Department of Public Health and Environment (CDPHE).
Local Transit Routes Affected
Front Range commuters who used the Flatiron Flyer bus service between Boulder and Denver on specific dates may have been exposed. The infected individual, who had recently returned from Europe, rode the bus during four separate trips:
- June 3: Two separate trips
- June 6: Two separate trips
What Colorado Residents Need to Know
While most cases have been travel-related, Colorado health experts emphasize that measles remains highly transmissible. "This virus is commonly described as the most contagious human virus in existence," warns CDPHE officials.
Residents should watch for initial symptoms including:
- Fever
- Cough
- Runny nose
- Red eyes
- Characteristic rash (appearing several days after initial symptoms)
Protecting Colorado Communities
"While unvaccinated individuals face the highest risk, this case demonstrates that even vaccinated people can occasionally contract the virus," explains CDPHE. "However, vaccinated individuals typically experience milder symptoms and are less likely to spread the disease."
Colorado residents who suspect exposure should take immediate precautions. Local public health departments urge anyone developing symptoms to call ahead before visiting medical facilities to prevent further exposure.
For the latest information on potential exposure locations, residents can visit the CDPHE's regularly updated exposure tracking page.
The case comes as both Colorado and Europe experience a concerning resurgence in measles cases, highlighting the importance of continued vigilance and vaccination across Colorado communities.
This article contains AI-generated content and reflects opinion only. Readers are encouraged to verify all information independently before drawing conclusions or making decisions.
