Washington has seen 10 confirmed cases of measles so far in 2025, according to the state Department of Health, or DOH. The cases have all been on the west side, including six in King County and two each in Whatcom and Snohomish counties. The Whatcom County cases involved two family members in the same household.

For instance, although measles was declared eliminated in the United States in 2000, just this year there have been 1,356 confirmed cases and 32 outbreaks across 41 states -- including South Carolina.

New data is set to be released Wednesday from the CDC on the spread of measles in the U.S. As of last week, there were 1,333 cases in the U.S. for the year in 39 states. That’s the highest the numbers have been in more than three decades.

After not reporting any measles cases this year during the nation’s worst outbreak of the highly contagious disease in decades, Idaho health officials reported two cases this week. The two new infections — both in unvaccinated children — are Idaho’s first measles cases since 2023,

The West Virginia Department of Health put out an alert Tuesday warning that some West Virginia residents may have been exposed to measles.

School-aged Marylanders have among the highest vaccination rates in the country, but the percentage of non-medical exemptions from vaccinations has more than doubled over the last decade among