Colorado health officials recently warned about a potential measles exposure at Denver International Airport. An out-of-state traveler with confirmed measles passed through the airport on December 12 while still infectious.
This traveler arrived at gate B45 at 7:24 PM and left from gate B84 at 9:41 PM. The Colorado Department of Public Health and Environment (CDPHE) will notify any passengers on the same flights.
Though the infected passenger was fully vaccinated and showed mild symptoms, the risk of transmission still exists. Measles is highly contagious and can lead to serious health issues, but it’s preventable through vaccination.
As of late December 2025, the CDC reported over 2,000 measles cases across the U.S., marking the highest count seen in almost 30 years. This surge raises concerns that the U.S. could lose its measles-free status.
Symptoms of measles include fever, cough, runny nose, and red eyes, followed by a rash that starts on the face and spreads. The best defense against measles is the measles, mumps, and rubella (MMR) vaccine. Monitoring for symptoms is especially crucial for unvaccinated individuals.
Anyone who was at the airport between 7 PM and 11:55 PM on December 12 should watch for any symptoms until January 2. If symptoms develop, health officials advise calling a healthcare provider to discuss potential exposure before seeking in-person care.
Recently, Colorado has seen a rise in measles cases. This month alone, the state recorded three new cases, pushing the total for 2025 to 36, far exceeding totals from recent years. This alarming trend reflects a nationwide increase in measles, prompting health experts to urge vaccinations.
For more information on symptoms, transmission, and vaccination, visit the CDPHE’s measles webpage.
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Colorado News,Denver International Airport (DIA),Health,Measles

