Public Health reports measles case in traveler with possible exposure at Sea-Tac Airport

Public Health – Seattle & King County is warning the public about possible measles exposure at Sea-Tac Airport after an out of state traveler passed through the airport on Nov. 11 and Nov. 17, according to information released by the agency.

The agency said the individual’s vaccination status is unknown.

According to Public Health, the traveler was at the airport before being diagnosed with measles, and the virus can remain in the air for up to two hours after an infected person leaves an area. The agency has posted estimated exposure times and specific airport locations on its measles webpage.

Public Health said that people who were at the airport during the listed time periods and who are not immune to measles, or do not know their vaccination status, should review the exposure information online. The agency advised people to make sure they are up to date on measles vaccinations or have previously had measles.

The agency said there have been four other measles cases this year among people who traveled through King County but are not Washington residents, and 12 additional cases in Washington residents.

Public Health said those exposed should monitor for symptoms, which can include fever, an unexplained rash, cough, runny nose or red, watery eyes. Symptoms typically begin 7 to 21 days after exposure.

For people who may have been exposed on Nov. 11, the most likely window for symptoms is Nov. 18 through Dec. 2. For those exposed on Nov. 17, symptoms are most likely between Nov. 24 and Dec. 8. Public Health noted that people who are immunocompromised may experience symptoms later.

The agency said anyone with symptoms should contact a healthcare provider before going to a clinic or hospital to avoid exposing others, and should limit contact with people who do not have known immunity.

According to Public Health, most people in the region have immunity through vaccination, and the risk to the general public is low. Measles is highly contagious and can lead to serious health complications, especially for young children, adults over 20 years, pregnant people and people with weakened immune systems.

Public Health said the measles, mumps and rubella vaccine is safe and highly effective, with two doses providing long lasting protection.

More information, including vaccination resources, is available at www.kingcounty.gov/measles.