U.S. health officials call for COVID-19 booster shots
U.S. health officials are recommending all Americans get COVID-19 booster shots to shore up their protection amid the surging delta variant and evidence that the vaccines' effectiveness is falling. The plan calls for an extra dose eight months after people get their second shot of the Pfizer or Moderna vaccine. The doses could begin next month.
U.S. health officials are recommending all Americans get COVID-19 booster shots to shore up their protection amid the surging delta variant and evidence that the vaccines' effectiveness is falling. The plan calls for an extra dose eight months after people get their second shot of the Pfizer or Moderna vaccine. The doses could begin next month.
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