Emergency doctor explains how the Delta variant affects vaccinated people

  • ER doctor Leana Wen says COVID-19 cases are rising in the US because vaccination numbers are not high enough.
  • The Delta variant of COVID-19 is 50% more contagious than the Alpha variant, which is 50% more contagious than the original variant.
  • She says people who got the Pfizer or Moderna vaccines are “extremely well protected from severe disease” with the Delta variant.
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