Public Health – Seattle & King County was notified of a measles case in an adult who traveled on a connecting flight through Seattle-Tacoma International Airport (SEA) on November 11, 2025, and again on November 17, 2025. The individual is an out-of-state traveler and their vaccination status is unknown. If you are not immune to measles or don’t know your vaccination status, and were at the airport on November 11th or November 17th, please visit our measles webpage for specific information about potential areas of exposure within the airport.
Public Health – Seattle & King County was notified of a confirmed measles case in a King County adult. The individual was on the same flight as a person with a confirmed case of measles that Public Health previously announced on October, 17, 2025. We believe this latest case was exposed to measles on this flight. This latest case was at Toyota of Renton, Valley Medical Center, YangGuoFu Malatang Restaurant and Disney on Ice at ShoWare Center during their infectious period.
Public Health – Seattle & King County is informing the community of a confirmed measles case in a visitor to Washington state who may have exposed others to the measles virus at multiple locations throughout King and Snohomish counties.
Public Health – Seattle & King County is informing the community of a confirmed measles case in a King County resident who may have exposed others to the measles virus at Seattle-Tacoma International Airport (SEA) and at Seattle Children’s Hospital.
Public Health – Seattle & King County was notified of a confirmed measles case in a Canadian resident. The individual traveled through Seattle-Tacoma International Airport (SEA) and stayed overnight at a nearby hotel, on April 6 and 7, 2025, while infectious. The individual was likely exposed to measles while traveling abroad. The person’s vaccine status is unknown.
We have identified a second case of measles in Washington state. This case is linked to a previous case of measles in King County from late February. The individual was not in any public spaces while infectious.
