Maricopa County measles cases reach 30-year high. Were you exposed?
- Posted on April 22, 2026
- By The Arizona Republic
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- 1 min read
Maricopa County measles cases reach 30-year high. Were you exposed?

A spike in measles case numbers in Maricopa County is part of a national and global trend. Four new cases were tied to a Mesa youth basketball game.