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CDC: Omicron sub-variant BA.2 makes up about 55 per cent of Covid variants in US
A resurgence of Covid-19 cases in parts of Asia and Europe has raised concerns that another wave could follow in the United States. ― Reuters pic
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NEW YORK, March 29 — The BA.2 sub-variant of Omicron was estimated to be more than half or 54.9 per cent of the coronavirus variants circulating in the United States as of March 26, the US Centres for Disease Control and Prevention (CDC) said today.
A resurgence of Covid-19 cases in parts of Asia and Europe has raised concerns that another wave could follow in the United States.
Despite the rise of the highly transmissible BA.2 sub-variant, health experts in the United States believe that a new wave of infections appears unlikely as overall infections are declining from January’s record highs.
As of March 26, the seven-day moving average of US Covid-19 cases was 27,895, up about 4 per cent from a week earlier.
Last week, top US infectious disease official Dr. Anthony Fauci said that although he does not expect a major surge, he would not be surprised to see a rise in cases owing to the increasing dominance of the BA.2 sub-variant.
Most people in the United States are now considered to be in low Covid transmission, according to new CDC guidelines introduced last month that emphasized hospital capacity over case counts.Read full story
The CDC estimates that BA.2 made up 39 per cent, revised up from 34.9 per cent, of circulating variants in the country for the week ended March 19, according to a CDC model that estimates proportions of circulating variants.
The CDC has in the past revised its estimates as it gets more data. — Reuters