Confirmed measles case tied to Canadian traveler who passed through Sea-Tac airport
KOMO • • health
Key Points:
- Public Health – Seattle & King County alerted travelers after a confirmed measles case involving a Canadian resident who passed through Seattle-Tacoma International Airport on March 9, 2026.
- The infected individual's vaccination status is unknown, and they were at the airport before diagnosis; they are no longer in King County.
- Officials advise anyone not immune or unsure of their vaccination status who was at the airport on March 9 to check the health department’s measles webpage for exposure details.
- The likely incubation period for those exposed at the airport is from March 16 to March 20.
- Health officials emphasize vaccination as crucial to preventing measles spread, noting the disease can be contagious before symptoms or rash appear.
