Colorado reported two more cases of measles Monday and warned that people who visited the emergency rooms at three hospitals last week may have been exposed.
Among the newly infected are a 5-year-old child from El Paso County who had recently traveled to Ontario, Canada, where there is an ongoing measles outbreak. The other new case is in an adult from Arapahoe County who was at Denver International Airport on the same day an infectious traveler landed at the airport aboard a Turkish Airlines flight. The person is the eighth known infection in a Colorado resident linked to the flight.
The Colorado Department of Public Health and Environment said in a news release that the adult was unvaccinated and the child was vaccinated with one dose of MMR vaccine. Children typically receive their first dose of MMR after they turn 1 and a second dose between 4 and 6.
Colorado has now recorded 14 cases of measles in 2025, more than double all of the cases reported in the previous decade, combined. In newly released data, CDPHE reported that there have been three hospitalizations and no deaths. Eight of those infected have been unvaccinated.
Exposure locations
The two new cases are tied to five locations where they may have exposed others, including three hospitals and an urgent care clinic.
CDPHE released the following chart of those locations.
| Location | Date/time | When symptoms may develop |
| Powers Pointe Urgent Care5607 Barnes RoadColorado Springs, CO 80917 | Tuesday, June 39:30 a.m.-12:30 p.m. | Through June 24 |
| HCA HealthONE Aurora (Medical Center of Aurora) Emergency Department1501 S. Potomac St.Aurora, CO 80012 | Thursday, June 54:55-10:05 p.m. | Through June 26 |
| Safeway1200 S. Buckley RoadAurora, CO 80017 | Friday, June 64-6:15 p.m. | Through June 27 |
| St. Francis Medical Center Emergency Department6001 E. Woodmen RoadColorado Springs, CO 80923 | Saturday, June 79:30-10:50 a.m. | Through June 28 |
| UCHealth University of Colorado Hospital Emergency Department12605 E. 16th Ave.Aurora, CO 80045 | Saturday, June 72-4:10 p.m. | Through June 28 |
This adds to dozens of other locations where people may have been exposed to measles in recent weeks without yet experiencing symptoms if they were infected.
CDPHE is maintaining an updating list of all locations of possible exposure in the state.
Call ahead
People who may have been exposed to measles and begin experiencing possible symptoms should call ahead to their doctor, hospital or local public health department before seeking medical care.
Measles typically starts with symptoms that mimic a common cold — fever, cough, runny nose and/or red eyes. The telltale rash of flat, non-itchy, red spots shows up a few days later, starting on the face and spreading.
The most effective prevention for measles is vaccination. One dose of the MMR vaccine is considered 93% effective at preventing measles, and two doses are 97% effective. The vaccine can also be given after exposure to stop an infection from taking hold.
“If you’re traveling, try to protect yourself and your family with immunizations,” Dr. Ned Calonge, CDPHE’s chief medical officer, said in an interview last week. “They’re widely available. We have a lot of measles vaccine.”