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Coronavirus Persisting in Feces Offers Clues to Long Covid Cause

  • Scientists report large study tracking RNA in human waste
  • Lingering SARS-CoV-2 may provoke damaging immune response
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Inside a Shanghai Covid Isolation Center

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Covid-19 patients can harbor the coronavirus in their feces for months after infection, researchers found, stoking concern that its persistence can aggravate the immune system and cause long Covid symptoms.