Washington state added seven measles cases over the past week, bringing its confirmed total for 2026 to 53, according to state health department tracking summarized in the CDC's weekly national update.
The state has not characterized the weekly increase as a new outbreak, and this report does not either. What the number does show is that Washington's case accumulation has continued at a steady pace through the summer, in a state that recorded 12 cases in all of 2025.