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2021年11月29日 · Track the spread of the variant with the map below. The map was last updated Dec. 15, and will be updated periodically. A WHO report released Sunday said the omicron variant contains a number of...
2022年4月7日 · No week of the omicron wave saw more deaths than the week of Jan. 30 to Feb. 5. More than 18,400 deaths were recorded, according to NBC News’ tally.
- Nigel Chiwaya
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What is the Omicron variant?
How severe is Omicron?
Does the Omicron variant cause less severe disease?
Is there a new version of Omicron?
- Overview
- Do Covid vaccines work against XBB.1.5?
A new version of omicron has taken hold in the U.S., according to the most recent data from the Centers for Disease Control and Prevention. The subvariant of omicron, named XBB.1.5, has raised concerns about another potential wave of Covid cases following the busy holiday travel season.
The CDC projected Friday that about 40% of confirmed U.S. Covid cases are caused by the XBB.1.5 strain, up from 20% a week ago. In the Northeast, about 75% of confirmed cases are reported to be XBB.1.5.
It’s not clear yet where this version of omicron came from, but it appears to be spreading quickly here. There’s no indication it causes more severe illness than any other omicron virus, Dr. Barbara Mahon, director of CDC’s Coronavirus and Other Respiratory Viruses Division, told NBC News.
While overall Covid hospitalizations are rising around the country, areas such as the Northeast that have seen high levels of the new variant have not experienced a disproportionate increase in hospitalizations, Mahon said.
“We’re seeing hospitalizations have been notching up overall across the country,” she said. “They don’t appear to be notching up more in the areas that have more XBB.1.5.”
The seven-day average of daily Covid hospitalizations reached 42,140 on Friday, an increase of 4.2% from two weeks previously, according to an NBC News tally. The seven-day average of daily intensive care unit admissions has also risen to 5,125 per day, an increase of more than 9% from two weeks ago.
For encouraging signs, Rick Bright, an American immunologist and former director of Biomedical Advanced Research and Development Authority, or BARDA, pointed to Singapore’s experience with XBB.
There was a surge of cases, but “we didn’t see the corresponding major surges in hospitalizations and deaths,” Bright said.
“We think it is because a larger population of people in Singapore have been vaccinated with latest vaccines and boosters," he said.
That could be a problem in the U.S., unfortunately.
People age 65 and older are the most vulnerable to any form of the Covid virus. Yet, only 37.5% of that age group has received the updated omicron booster, according to the most recent CDC data.
The most important thing experts agree is to get a booster shot with the bivalent vaccines to bolster your immune system against the newer subvariants.
2022年1月22日 · Friday, the seven-day average of cases in the U.S. was 743,913 cases, down 7 percent from the week before, according to NBC News data. Deaths, however, rose slightly, from an average of 1,979 on ...
2021年11月29日 · LONDON — The global risk of the new omicron variant is “very high,” the World Health Organization said Monday, as more countries reported cases of the variant, sparking worldwide concern that...
2022年1月12日 · Coronavirus. As Covid deaths rise, many still caused by delta variant, CDC says. The omicron variant appears to cause less severe disease and shorter hospital stays than previous strains, Dr....
2022年10月23日 · Coronavirus. Omicron subvariants pose a new threat to people with immune deficiencies. New versions of the omicron virus show resistance to the antibody drugs many need for extra protection...
