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CDC: Omicron now 73 percent of U.S. COVID-19 cases

Virus Outbreak US
Posted at 6:07 PM, Dec 20, 2021

NEW YORK — Omicron has raced ahead of other variants and is now the dominant version of COVID-19 in the U.S.

Federal health officials said on Monday that omicron accounted for an estimated 73% of new infections last week.

The Centers for Disease Control and Prevention numbers showed nearly a six-fold increase in the proportion of infections in only one week.

Since the end of June, the delta variant has been the main version causing U.S. infections. Scientists in Africa first sounded the alarm about omicron less than a month ago.

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