The Washington State Department of Health has launched a new online tool that tracks public exposure sites related to measles cases across the state. The Measles Exposure Location Tracker allows residents to view, in real time, locations where people with confirmed measles have been—helping individuals determine whether they may have been exposed and what steps to take.

The map was created following a confirmed case of measles involving a traveler who passed through Seattle-Tacoma International Airport on October 13. With 11 confirmed measles cases reported in Washington so far in 2025, the Department of Health said the new tool is part of a broader effort to inform the public and strengthen the state’s outbreak response.

Measles is an extremely contagious virus that spreads through the

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