People at Broomfield High School and six businesses and medical facilities in the area may have been exposed to measles, according to the state health department. A Broomfield child who had not been vaccinated was confirmed as a measles case, according to officials.

Six businesses or medical facilities, and the school, are listed as potential measles exposure locations, including the Broomfield King Soopers off U.S. 287, the PetSmart on Town Center Drive in Westminster and Efrain’s Mexican Restaurant in Lafayette, according to a Colorado Department of Public Health and Environment news release Friday. Officials warn that unconfirmed cases may be traveling through the area.

The child confirmed to have measles had not gotten the measles, mumps and rubella vaccine, according to the release. They have no known connection to a recent exposure situation reported at Denver International Airport, according to officials.

“The lack of a clear source of infection suggests that unidentified measles cases may be occurring in or traveling through the area,” said the release, which encourages people to get the MMR vaccine.

Anyone who attended Broomfield High School on Feb. 19, Feb. 20 or on Monday, from 8 a.m. to 6 p.m., may have been exposed, according to officials. Students and staff at Broomfield High School who haven’t had the measles vaccine were asked to stay home from school starting Friday.

Any student or staff member who went to Broomfield High School on the days in question and who does not have an up-to-date MMR vaccination record on file with the district cannot go to school until their immunity status can be verified, according to officials.

Students and staff looking to attend school must have proof of measles immunity — otherwise they have to stay home, according to a letter from the Broomfield Public Health and Environment department circulated via email by the district.

Public health officials may reach out to students and staff to discuss measles immunity, according to the email, as well as symptoms and any next steps. Information will be kept confidential.

The Colorado health department and the Broomfield public health department began working with Broomfield High School to follow up, according to the email.

The businesses and medical facilities listed were:

• King Soopers at 1150 U.S. 287 in Broomfield between 1 and 5 p.m. Feb. 19 and between 9 a.m. and 1 p.m. Saturday. Symptoms may develop through March 12 for the first period and March 14 for the latter;

• PetSmart Walnut Creek at 10460 Town Center Drive in Westminster between 7:30 a.m. and 10 a.m. Sunday. Symptoms may develop through March 15;

• Efrain’s Mexican Restaurant at 101 E. Cleveland St. in Lafayette between 5 and 10 p.m. Sunday. Symptoms may develop through March 15;

• Advanced Urgent Care at 3950 W. 144th Ave. in Broomfield between 1:30 and 4:30 p.m. Tuesday. Symptoms may develop through March 17;

• UCHealth Broomfield Hospital Emergency Department at 11820 Destination Drive in Broomfield between 2:45 and 6 p.m. Tuesday. Symptoms may develop through March 17; and

• CU Medicine Family Medicine at 361 Centennial Parkway #120 in the Louisville area between 10:45 a.m. and 2:30 p.m. Wednesday. Symptoms may develop through March 18.

People who were at the school or any one of the six businesses or medical facilities at the listed days and times should look out for measles symptoms for 21 days after, according to the release.

If you develop symptoms, officials ask that you call your health care provider, urgent care or an emergency department to tell them you may have been exposed to measles. Avoiding going directly into these facilities helps prevent further spread, officials wrote in the release.

Colorado health officials said the list of exposure locations on its webpage would be updated as they identify any more.

Until the Broomfield case, there had only been one confirmed case of measles in Colorado this year, according to a state health department webpage.

An out-of-state traveler with a confirmed case of measles traveled through Denver International Airport and attended a church service in the state while infectious, according to Colorado health officials. The individual arrived on a flight Feb. 21 and departed Sunday, according to a news release.

“Because the passenger is fully vaccinated, the risk of transmission is lower, but still possible,” the release said.

On Sunday, the person attended a church service and reception at a church at 6853 S. Prince St. in Littleton, the release said.

Measles is a highly infectious but preventable disease with symptoms that can include fever, cough, runny nose and red eyes, according to state health officials. Those symptoms are sometimes followed several days later by a rash on the face that spreads.

Getting vaccinated within 72 hours of exposure may prevent measles or reduce the severity of symptoms, state officials said.
For 2025, Colorado confirmed 35 measles cases, the most the state has seen in a single year since at least 1996. Roughly two-thirds of those cases were in unvaccinated people, according to public health data.

Anyone with questions or concerns can contact the Boulder Communicable Disease program at 303-413-7523 or email epi@bouldercounty.gov or contact the Broomfield Public Health Epi Team at epi@broomfield.org or by calling 720-887-2220, according to the email.

This is a developing story and may be updated.