More Than 100 Cases of Measles Reported in Utah and Arizona

In the hardest-hit counties, childhood vaccination rates steeply declined during the pandemic. https://static01.nyt.com/images/2025/10/21/multimedia/21WELL-ARIZONAUTAH-MEASLES1-lhbg/21WELL-ARIZONAUTAH-MEASLES1-lhbg-mediumSquareAt3X.jpg