King County measles case

King County health officials reported a confirmed measles case in an infant on April 10 after recent international travel. (publichealthinsider.com) Public Health – Seattle & King County said the infant was contagious while visiting Bellevue and Northeast Seattle and while riding Metro bus route 250 and the Link light rail 2 Line. The county posted exposure dates from April 3, April 5 and April 8, with symptom watch dates running through April 26. (kingcounty.gov) Health officials said the infant had not yet been vaccinated and was likely exposed during international travel. They also said this case is not connected to the two adult King County cases announced on April 1. (kingcounty.gov) (publichealthinsider.com) Measles spreads so easily that the virus can remain in the air for up to two hours after an infected person leaves. King County says people can pass it on before they know they are sick and before the rash appears. (kingcounty.gov) (publichealthinsider.com) Washington state had recorded 33 confirmed measles cases in 2026 as of the Department of Health update posted April 6, including two King County residents before this infant case was added locally on April 10. State data listed 21 cases linked to a Washington outbreak, 10 not linked to a Washington outbreak and two still under investigation. (doh.wa.gov) (kingcounty.gov) King County’s measles page now lists three resident cases in 2026. The same page shows seven resident cases in 2025 and 16 in 2019, the county’s highest annual total in the figures posted online. (kingcounty.gov) The main protection is the measles, mumps and rubella vaccine. The Centers for Disease Control and Prevention says children should get the first dose at 12 to 15 months and the second at 4 to 6 years, and says two doses are 97 percent effective against measles. (cdc.gov) The federal guidance also calls for an early dose for infants 6 through 11 months before international travel, followed by the standard childhood series later. In King County, health officials told people who were at the listed locations to check their vaccination records and watch for fever or rash through the posted dates. (cdc.gov) (kingcounty.gov)