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Omicron Becomes Dominant U.S. Strain With 73% of Covid Cases

  • Delta recedes as variant surges across country, CDC finds
  • Prevalence increases as consumers, businesses shift plans
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WATCH: Johns Hopkins Center for Health Security Senior Scholar Gigi Gronvall discusses the spread of the omicron variant.Source: Bloomberg 
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The omicron variant accounted for 73% of all sequenced Covid-19 cases in the U.S., surging from around 3% last week, according to the latest federal estimates.

The highly mutated coronavirus strain has been detected across the country, the Centers for Disease Control and Prevention said in a model that it updates weekly. The delta variant, which had been the dominant form of the virus in the U.S. last week, has now receded to roughly 27% of sequenced cases.