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Coronavirus Variants

  1. explainer
    What We Know About the Dangerous Delta VariantThe more transmissible COVID strain now accounts for an estimated 93 percent of new cases in the U.S.
  2. covid-19
    9 Reasons to Believe the Worst of the Pandemic Is OverThe good news is really starting to roll in. (Though there are also a few reasons for caution.)
  3. coronavirus
    New COVID Strain Spreading Across U.S.: What We KnowA distressing new study suggests that the U.K. variant is doubling its number of confirmed infections in the U.S. every 10 days.
  4. coronavirus
    What We Know About the New P.1 Strain of the CoronavirusThe new variant, detected amid a horrifying resurgence of COVID cases in Manaus, Brazil, has alarmed scientists around the world.