Another Measles Case Reported in King County in 2025

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Vaccination is the best way to protect against the measles. Photo: iStock

There have been two new cases of measles reported in King County, a child and an adult family member. They visited multiple locations between June 14–22, 2025.

The measles virus is extremely contagious and can remain in the air for up to two hours after someone contagious with measles leaves an area. Anyone who was at the following locations during the times and dates listed may have been exposed:

June 14
- Bellevue Fire Station 9 (12412 Newcastle Way, Bellevue), 11 a.m.–2:30 p.m.
June 15
- St. Madeleine Sophie Catholic Parish (4400 130th Pl. S.E., Bellevue), 10:30 a.m.–2 p.m.
- Lake Union Swim Academy (2040 Westlake Ave. N., Seattle), 3–6 p.m.
June 18
- Mary Wayte Pool (8815 S.E. 40th St., Mercer Island), 1–4 p.m.
- Costco Issaquah (1801 10th Ave. N.W., Issaquah), 2:30–5:30 p.m.
June 19
- Overlake Clinics Newcastle Urgent Care (13159 Newcastle Commons Dr., Newcastle), 1:20–4:20 p.m.
June 20
- Seattle Children’s Hospital (4800 Sand Point Way N.E., Seattle), multiple locations, 11:50 a.m.–5:45 p.m.
June 22
- Swedish First Hill (747 Broadway, Seattle), main lobby, East tower and East tower elevators, 9:15–11:45 a.m.

Most people in our area have immunity to the measles through vaccination (which provides about 97 percent protection against measles) so the risk to the general public is low. If you were at the locations at the times listed above and are not immune to measles, the most likely time you would become sick would be between June 21–July 13, 2025.

Editor’s note: This article was originally written in response to the first case of measles in King County in February 2025. Subsequent cases have been added to keep families informed, running details are below.

A Canadian resident with a confirmed case of measles was traveling around several locations between April 30 and May 3, 2025 while they were infectious.

April 30–May 3

The Residence Inn (11920 N.E. 195th St., Bothell)

April 30

LA Fitness (15053 Main St., Bellevue), noon–3:30 p.m.
Bellevue Market Place (14625 N.E. 20th St., Bellevue), 2–5 p.m.
Chateau Ste. Michelle (14111 N.E. 145th St., Woodinville), 4–8 p.m.
Home Depot (17777 N.E. 76th St., Redmond), 6–8:30 p.m.

May 1

Dunn Lumber (120 Factory Ave. N., Renton), 11:30 a.m.–2:30 p.m.
Genki Sushi (365 S. Grady Way Ste. B, Renton), 2–5 p.m.
Topgolf (780 Logan Ave. N., Renton), 3–6 p.m.

May 2

LA Fitness (12321 12th Pl. N.E., Kirkland), noon–3:30 p.m.
Pho Mignon (12557 116th Ave. N.E., Kirkland), 1:30–4 p.m.
Kobo at Higo (604 S. Jackson, Seattle), 2:30–4:45 p.m.
Uwajimaya (600 Fifth Ave. S., Seattle), 3–5:30 p.m.
Stoup Brewing (1158 Broadway, Seattle), 4–8 p.m.
Spicy Style of Sichuan (13200 Aurora Ave. N., Seattle), 6:15–10 p.m.
Columbia Super Range (511 128th St. S.E., Everett), 8:30 p.m.–11:30 p.m.

May 3

SEA Airport, S Concourse (Gate S1), 8:30 a.m.–1:30 p.m.

An infant with a confirmed cast of measles has been identified in King County with possible exposures at Seattle-Tacoma International Airport (SEA) and Seattle Children’s Hospital on April 15–20, 2025.

Seattle-Tacoma International Airport, multiple locations in the airport (see the King County Public Health website for details), on April 15, 4:50–7:45 p.m.
Seattle Children's Emergency Department (4800 Sand Point Way NE, Seattle), multiple locations ( (see the King County Public Health website for details) on the following days:
- April 17, 8:45–11 a.m. and 5:30–7:45 p.m.
- April 18, 11:50 a.m.–3:30 p.m.
- April 20, 12:05–2:25 p.m.

An adult, confirmed to have measles, traveled through Seattle-Tacoma International Airport (SEA) and stayed at a Tukwila hotel on April 6–7, 2025.

Seattle-Tacoma International Airport, multiple locations in the airport (see the Public Health Insider for details), on April 6, 5:45–10 p.m.
Comfort Suites Tukwila Airport (7200 Fun Center Way, Tukwila), April 6–7, 8:45 p.m. on April 6 to 7 a.m. on April 7.
Seattle-Tacoma International Airport (S Concourse, Gate S1) April 7, 4:45–7:30 a.m.

An infant with a confirmed case of the measles was identified in King County on Feb. 26, with possible exposures at multiple area locations. The infant may have been exposed to measles while traveling abroad.

Apple Store at Bellevue Square (213 Bellevue Square, Bellevue) on Feb. 20, 2025, 6–9 p.m.
Seattle Children’s Hospital Emergency Department (4800 Sand Point Way NE, Seattle) on Feb. 21–22, 2025, 10:30 p.m.–2:15 a.m.
Allegro Pediatrics – Bothell (11724 NE 195th St, Ste 100, Bothell) on Feb. 24, 2025, 1–4:15 p.m.
Northwest Asthma & Allergy Center (8301 161st Ave NE, Ste 308, Redmond) on Feb. 25, 2025, 1–4 p.m.
Seattle Children’s Hospital Emergency Department (4800 Sand Point Way NE, Seattle) on Feb. 25, 2025, 2:30–5:30 p.m.

Most people in our area have immunity to the measles through vaccination (which provides about 97 percent protection against measles) so the risk to the general public is low. However, anyone who was in the locations of potential exposure to measles around the times listed above should:

Find out if you have been vaccinated for measles or have had measles previously
Call a health care provider promptly if you develop an illness with fever or illness with an unexplained rash. To avoid possibly spreading measles to other patients, do not go to a clinic or hospital without calling first to tell them you want to be evaluated for measles. If you need to go to a healthcare facility, wear a well-fitting mask.

Those most at risk from exposure to measles are unvaccinated individuals, infants and children younger than 5 years, adults over 20 years, pregnant people, and people with weakened immune systems from medications or underlying disease. If you were at any of the exposed areas and are not immune to measles, the most likely time you would become sick would be between Feb. 27–March 18, 2025.

For more information, and to learn more about where to get vaccinated, visit the King County website.