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Early U.S. Omicron Cases Caused Mild Illness in Vaccinated

  • Four-fifths of 43 cases found were in vaccinated people
  • CDC releases initial data on new variant’s arrival in U.S.
Bloomberg business news
Delta Reaching Peak Level as Omicron Emerges: Johns Hopkins
Updated on

The first omicron cases in the U.S. were detected mostly in vaccinated people who experienced mild illnesses, with only one hospitalization and no deaths reported so far, the U.S. Centers for Disease Control and Prevention said. 

As of Dec. 8, the U.S. had investigated 43 cases of the Covid-19 variant that set the world on high alert last month because of mutations that may make it spread more easily.