The Centers for Disease Control and Prevention (CDC) reported that over 2,300 cases of measles have been documented in the United States in 2026, the highest number since 1992. The resurgence of measles is attributed to lower vaccination rates, with only 28% of U.S. counties achieving the necessary immunization levels among kindergarteners to prevent transmission. Factors contributing to this decline include political polarization, misinformation, and decreased trust in health authorities. Historically, the U.S. eradicated measles in 2000, but the current situation highlights challenges in maintaining vaccination coverage. Public health campaigns in the past successfully increased vaccination rates, but complacency regarding the disease has emerged as a significant issue.
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Increase in Measles Cases in the U.S. Marks Highest Levels Since 1992
In 2026, the U.S. has seen over 2,300 measles cases, the highest since 1992, according to the CDC. This increase is linked to declining vaccination rates, with only 28% of counties meeting the required immunization levels to prevent outbreaks. Factors such as misinformation and reduced trust in health authorities are contributing to this trend.
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The worst year for measles in a generation
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Increase in Measles Cases in the U.S. Marks Highest Levels Since 1992