Boulder County confirms first measles case in a decade
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Boulder County and the state of Colorado last Friday confirmed the first measles case in a county resident in more than a decade.
The latest: A fully vaccinated adult became infected and was diagnosed after recently traveling to Europe, where there are a large number of measles cases.
- Boulder County Public Health spokesperson Giselle Noll said it is the first confirmed case since 2014. That instance was also travel-related.
Catch up quick: People who were in the following locations at the times specified could have been exposed:
- The patient was on the Boulder-Denver Flatiron Flyer bus for both the 6:45am and 4:05pm buses on June 3, 5 and 6.
- The patient was also at Rosetta Hall, 1109 Walnut St., from 7:30-10:45pm June 6.
- In Denver, the patient went to Market Building 1400 16th St., Little Finch Coffee Shop, 1490 16th St. and Whole Foods 1701 Wewatta St.
Threat level: Noll said there have been no other reported cases in Boulder County as of Monday.
- But she added that people exposed to measles can develop symptoms up to 21 days after exposure.
Symptoms include fever, cough, runny nose, red eyes and a rash that typically starts on the face and spreads to the rest of the body.
- Those who were exposed and begin experiencing symptoms should call their health care provider before visiting a clinic, urgent care, or emergency room to help prevent further spread of the virus.
- Noll said the best protection against measles is the MMR (measles, mumps and rubella) vaccine.
- Two doses of the MMR vaccine provide long-lasting protection and are over 97% effective.
Zoom out: Colorado has had 15 confirmed measles cases this year, according to the Colorado Department of Public Health and Environment.
- The CDPHE said 2025 marks the highest increase and confirmation of reported measles cases in Colorado since 2014, per CBS News.