Confirmed measles case identified in traveler at Sea-Tac Airport

Public Health – Seattle & King County announced a confirmed measles case in an adult traveler who visited Seattle-Tacoma International Airport on January 10, 2025. The individual, an Alaska resident, likely contracted the virus while traveling abroad, and their vaccination status is unknown. Health officials warn that measles is highly contagious, with the potential for transmission even after the infected person has left an area. They recommend that those who were in the airport during the specified times check their immunity and seek vaccination if unprotected. Symptoms of measles appear 7 to 21 days after exposure, and the disease can lead to severe complications, especially in vulnerable populations.

The measles, mumps, and rubella (MMR) vaccine offers 97% protection after two doses, according to the CDC. Public health officials have stated that the risk to the general public remains low due to high vaccination rates in the region, yet vigilance is essential. For more information on measles and vaccination, residents can visit the King County website.