Health officials have confirmed four new cases of measles involving people who spent time at Seattle-Tacoma International Airport, among other sites throughout the Puget Sound region.
Two of the cases involve King County women, the third an adolescent male in Snohomish County and the fourth a Pierce County resident, the Washington State Department of Health said Wednesday.
The new cases come after a Pierce County man was diagnosed with measles over the weekend and a Canadian man was diagnosed earlier this month after he traveled to Seattle in late April.
This brings the total number of measles cases in Washington to 77, according to the health department. The vast majority, 71, have occurred in Clark County.
Measles, which can cause fever, rash and red watery eyes, is highly contagious and spreads quickly through the air after a cough or sneeze. The virus can remain in the air for up to two hours after someone with the disease leaves the area.
Health officials in the three county departments said they are working to determine the sites each person went while contagious.
The Issaquah School District urged families to check their children for measles symptoms after one case was reported at Issaquah High School. About 96 percent of Issaquah students are vaccinated against measles, according to health department data.
The incomplete list of exposure hours from King County includes sites in Seattle and Issaquah:
May 12: 9:30 a.m.-1 p.m. Coldwell Banker Bain (1151 S.W. Sammamish Road, Suite 103, Issaquah)
May 6-9: 7:30 a.m. — 6 p.m. Issaquah High School (700 2nd Ave. S.E., Issaquah)
May 6: 6 p.m. — 10 p.m. Coldwell Banker Bain (1151 S.W. Sammamish Road, Suite 103, Issaquah)
May 7: 4 p.m. — 9 p.m. Coldwell Banker Bain (1151 S.W. Sammamish Road, Suite 103, Issaquah)
May 7 to 10: 3 a.m. — 4 p.m. SeaTac International Airport, 1st Floor Parking Garage, Orange Elevators, breezeway over Skybridge 5, terminal to baggage-claim area
May 7: 9 a.m. — 2 p.m. Third & Broad Business Building (2901 Third Ave., Seattle)
May 7: 12 p.m. — 2:30 p.m. Cherry Street Coffee (2719 First Ave., Seattle)
May 9: 5:30 p.m. — 9 p.m. Hops n Drops (4506 Klahanie Drive S.E., Issaquah)
May 9: 9 a.m. — 6 p.m. Third & Broad Business Building (2901 Third Ave., Seattle)
May 9: 11:30 a.m. — 2:30 p.m. Matt’s in the Market (94 Pike St., Suite 32, Seattle)
May 10: 11 a.m. — 4 p.m. Open house at Hunter’s Ridge (4548 244th Place S.E., Issaquah)