Measles Case at Boise Airport Puts Low-Vaccination Idaho on Alert

Health officials in Idaho are tracking potential measles exposures after a person with the highly contagious virus passed through the Boise Airport last month. The individual was in the terminal during the early morning hours of March 29. The Idaho Department of Health and Welfare is now working to contact airline passengers who may have shared flights with the infected traveler.

The timing suggests that anyone who caught the virus at the airport could have begun showing symptoms last weekend. Measles typically starts with a high fever, cough, runny nose, and red, watery eyes. The distinctive red rash follows a few days later, beginning on the face and spreading downward. A person can spread measles for four days before the rash even appears.

This incident highlights a specific vulnerability in Idaho. The state reports the nation's lowest rate of measles vaccination for kindergarten students. During the current school year, over 15% of Idaho kindergartners had an exemption from the vaccine. The vast majority of those—15.1%—were for non-medical reasons, not due to a doctor's orders.

Public health experts warn that such low vaccination coverage creates ideal conditions for the virus to spread if it is introduced, making this airport exposure a significant concern for the community.