Data Investigation: Childhood Vaccination Rates Are Backsliding Across the U.s.
Posted4 months ago
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Vaccination RatesPublic HealthHerd Immunity
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Vaccination Rates
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Childhood vaccination rates in the U.S. are declining, with 68% of counties having MMR immunization rates below the 95% threshold needed for herd immunity, sparking concerns about potential outbreaks.
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Sep 16, 2025 at 1:24 AM EDT
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sluAuthor
4 months ago
"Among the states collecting data for the measles-mumps-rubella (MMR) vaccine, 68% of counties and jurisdictions now have immunization rates below 95% — the level of herd immunity doctors say is needed to protect against an outbreak."
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