People wait in lengthy strains in Times Square to get examined for Covid-19 on December 20, 2021 in New York City.
Spencer Platt | Getty Images
The quickly spreading omicron variant is now the dominant Covid strain in the U.S., representing 73% of sequenced cases, in line with data published Monday by the Centers for Disease Control and Prevention.
Omicron has displaced the beforehand dominant delta variant, which the CDC says is now an estimated 26.6% of sequenced cases for the week ending December 18. Just one week earlier, delta made up 87% of cases to omicron’s 12.6%, the knowledge reveals.
The omicron Covid-19 variant was first detected in southern Africa in late November and labeled a “variant of concern” by the World Health Organization on Nov. 26. It’s not clear when precisely it first arrived in the U.S. Though California was first U.S. state to verify an omicron case in the nation on Dec. 1, the CDC has stated a affected person developed signs earlier on Nov. 15.
While the variant has confirmed to be extraordinarily transmissible, a lot stays unknown about the severity of the sickness it causes.
In some components of the nation, the share of omicron cases is increased than the nationwide determine of 73%. The CDC estimates it makes up greater than 90% of cases in parts of the Northwest, South, Southeast, and Northeast.
The CDC had beforehand revealed knowledge for the week ending Dec. 11 displaying that omicron represented 2.9% of cases, however has revised that estimate for that interval upward.
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