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Canada just lost its measles elimination status. Is the U.S. next?

The virus has been circulating in Canada for more than a year 

A sign advertising measles screening is in the foreground, to the left. The top of the sign has a red octagon with a white hand signaling stop, with "measles screening" written to the right. Underneath the sign lists measles symptoms and what to do if exposed to measles. To the right of a sign, a woman walks through open double doors into a hospital corridor.

A person walks past a measles screening sign at Victoria Hospital in London, Ontario. Canada eliminated measles in 1998, but the first anniversary of an outbreak that started in late 2024 recently marked the loss of the country’s measles elimination status.

GEOFF ROBINS /Contributor/Getty

By Erin Garcia de Jesús

Measles is making a comeback in the Americas.