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Public Health – Seattle & King County confirmed a measles case in a traveler who passed through Seattle-Tacoma International Airport on Oct. 13, 2025.

Possible exposure locations include Gate C9, the Green Train Line, and Gate N5 between 11:30 a.m. and 2:40 p.m.

Health officials advise anyone who may have been exposed to check vaccination status and watch for symptoms through Nov. 3, 2025.

SEATAC, Wash. - Public Health – Seattle & King County is warning travelers of possible measles exposure at Seattle-Tacoma International Airport (SEA) after confirming a case in an adult traveler who passed through the airport on Oct. 13, 2025.

The case is not linked to previous local measles reports . Officials said the county has responded to three other cases this year involving t

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