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Prognosis

CDC Says All Vaccinated U.S. Adults Should Get Booster Shots

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Biden Says No Need to Panic Over Omicron Variant

The U.S. Centers for Disease Control and Prevention is now recommending booster shots for all vaccinated people 18 and older as scientists race to study the emerging omicron variant of SARS-CoV-2.

The guidance, which previously said adults “may” get boosters, now says they “should” get a third dose of the Moderna Inc. or Pfizer Inc. shot six months after their second dose. The same recommendation applies to those who received the single-shot Johnson & Johnson vaccine but after only two months.