Health officials are urging residents of King and Snohomish counties to be vigilant about potential measles exposure. A family from out of state, consisting of one adult and two children, visited these areas between December 27, 2025, and January 1, 2026, while infectious with measles. Despite the parent claiming to have received at least one measles vaccine, the children remained unvaccinated. This has raised concerns about the potential spread of the disease in the community.
The family's itinerary included several locations in Marysville, Mukilteo, and Everett, as well as a stop at Seattle-Tacoma International Airport. They were contagious during their visit, but before they were diagnosed with measles. The virus can remain in the air for up to two hours after an infected person leaves an area, making it crucial for those who may have been exposed to take immediate action.
Here's a list of potential exposure sites and times, along with important instructions for those who may have been exposed:
- McDonald’s, 530 128th St. SW, Everett, WA 98204 - December 27, 2025, 1 p.m. to 3 p.m.
- Slavic Christian Church Awakening, 4223 78th St. SW, Mukilteo, WA 98275 - December 28, 2025, 2 p.m. to 6:30 p.m.
- Flying Squirrel Trampoline Park, 1325 SE Everett Mall Way, Everett, WA 98208 - December 29, 2025, 11 a.m. to 2 p.m.
- Chick-fil-A, 8810 36th Ave, Marysville, WA 98270 - December 29, 2025, 1 p.m. to 3 p.m.
- Mukilteo-Clinton Ferry, Mukilteo, WA 98275 - December 30, 2025, 1 p.m. to 3 p.m.
- Fisherman Jack’s, 1410 Seiner Dr., Everett, WA 98201 - December 30, 2025, 6 p.m. to 9:30 p.m.
- Travelers on rental car shuttles - January 1, 2026, 6:45 a.m. to 9 a.m.
- Seattle-Tacoma International Airport N Concourse, (Gate N4) + Green Train Line, SeaTac, WA 98158 - January 1, 2026, 7 a.m. to 11:15 a.m.
If you were at these locations during the specified times and are not immune to measles, you are at risk of contracting the disease. The most likely time for symptoms to appear is between January 4 and January 22. It's crucial to take the following steps if you believe you may have been exposed:
- Determine your vaccination status and ensure it is up to date.
- Contact a healthcare provider immediately and inform them of your potential exposure. If you develop a fever or an unexplained rash, seek medical attention promptly. Call the clinic or hospital beforehand to prevent the spread of the disease.
- Minimize contact with others to reduce the risk of transmission.
