Measles Makes a Comeback in Colorado

Measles, once nearly eradicated in the U.S., is reappearing in Colorado.

Denver public health officials told the City Council’s Health and Safety Committee on Wednesday that there have been four measles cases in Denver and 16 statewide so far this year. By comparison, only four cases were reported in the entire state between 2017 and 2024.

Of the Denver cases, one person was exposed at the airport, two contracted measles while traveling to Mexico during an outbreak, and one was infected through household contact. Officials say other patients have passed through Colorado while sick or have come here for treatment. Texas and Kansas are also reporting outbreaks.

Tracking & Containing the Spread
When a case is confirmed, the health department immediately builds a timeline of possible exposures and takes action. So far, officials have:

Contacted and assessed 437 people, identifying 186 high-risk contacts.
Given or referred 28 high-risk contacts for post-exposure prophylaxis.
Sent nurses to provide home testing for suspected cases.
Issued quarantine letters where needed.
Administered 700 vaccinations through 41 clinics in partnership with 25 community groups.
Reviewed air handling systems at Denver Health’s emergency department.

Currently, 84% of Denver Public Schools’ 80,000+ students are vaccinated against measles.

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Katie Baylett

Katie is a senior who has been on staff for three years. Her favorite type of stories to write is reviews and features. Katie’s favorite ice cream flavor is strawberry.