MEASLES-VACCINATION RATES-RATE CHANGE — Map. Childhood vaccination rates against measles fell in the years after the COVID-19 pandemic in nearly 80% of the more than 2,000 U.S. counties with available data. The following digital embed shows this by charting the rate change for each county with data, showing the direction and magnitude of the change. This map is current as of June 4, 2025, and will not update. Source: Center for Systems Science and Engineering at Johns Hopkins University.
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