SEATTLE — Health officials in King County have confirmed a new case of measles in an adult resident, bringing the state’s total to four for the year. The case, announced on April 4, is believed to be unrelated to earlier infections reported in Washington.
According to Public Health – Seattle & King County, the individual likely contracted the virus while traveling abroad. Experts say there is little to no risk of broader community exposure from this particular case.
This comes shortly after a Snohomish County infant tested positive for measles following international travel, as reported by KIRO 7. That child passed through several public locations before being diagnosed, including Seattle-Tacoma International Airport on March 27, and multiple healthcare facilities between March 29 and March 31.
Anyone who may have visited those areas during the identified timeframes should monitor their health and watch for signs of measles, which typically appear between 7 and 21 days after exposure. Common symptoms include high fever, cough, runny nose, red eyes, and a signature red rash.
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Measles is an extremely contagious disease that spreads through airborne particles when an infected person sneezes or coughs. Without immunity, nine out of ten people exposed to the virus are likely to get sick.
Health officials continue to emphasize the importance of vaccination. The MMR (measles, mumps, and rubella) vaccine offers strong protection—about 97% effectiveness after two doses, with immunity lasting a lifetime.
For detailed information about measles, exposure risks, symptoms, and where to receive the MMR vaccine in King County, visit: www.kingcounty.gov/measles.
