Omicron accounts for 73% of new infections in US as country reports first death from COVID-19 variant

Representational image. AFP

Health officials in Texas said the state recorded the first death related to the Omicron variant, ABC News reported. It is believed to be the first known recorded Omicron death in the United States. The victim was a man in his 50s, who was unvaccinated and had underlying health conditions, the report said.

County judge Lina Hidalgo tweeted that the man was the first local fatality from the variant:

Sad to report the first local fatality from the Omicron variant of COVID-19 . A man in his 50’s from the eastern portion of Harris County who was not vaccinated. Please – get vaccinated and boosted.

— Lina Hidalgo (@LinaHidalgoTX) December 20, 2021

Meanwhile, Omicron has raced ahead of other variants and is now the dominant version of the coronavirus in the US, accounting for 73 percent of new infections last week, federal health officials said Monday.

The Centers for Disease Control and Prevention numbers showed nearly a six-fold increase in Omicron’s share of infections in only one week.

In much of the country, it’s even higher. Omicron is responsible for an estimated 90 percent or more of new infections in the New York area, the Southeast, the industrial Midwest and the Pacific Northwest. The national rate suggests that more than 650,000 Omicron infections occurred in the US last week.

Since the end of June, the Delta variant had been the main version causing US infections. As recently as the end of November, more than 99.5 percent of coronavirus es were Delta, according to CDC data.

CDC Director Dr Rochelle Walensky said the new numbers reflect the kind of growth seen in other countries. “These numbers are stark, but they’re not surprising,” she said.

Scientists in Africa first sounded the alarm about Omicron less than a month ago and on 26 November the World Health Organisation designated it as a “variant of concern.” The mutant has since shown up in about 90 countries.

Much about the Omicron variant remains unknown, including whether it causes more or less severe illness. Early studies suggest the vaccinated will need a booster shot for the best chance at preventing Omicron infection but even without the extra dose, vaccination still should offer strong protection against severe illness and death.

“All of us have a date with Omicron,” said Dr Amesh Adalja, a senior scholar at the Johns Hopkins Center for Health Security. “If you’re going to interact with society, if you’re going to have any type of life, Omicron will be something you encounter, and the best way you can encounter this is to be fully vaccinated.”

Adalja said he was not surprised by the CDC data showing Omicron overtaking Delta in the US, given what was seen in South Africa, the UK and Denmark. He predicted spread over the holidays, including breakthrough infections among the vaccinated and serious complications among the unvaccinated that could stress hospitals already burdened by Delta.

Dr Eric Topol, head of the Scripps Research Translational Institute, said other countries had seen Omicron’s fast growth, but the US data showed “a remarkable jump in such a short time.”

Topol also said it’s unclear how much milder Omicron really is compared with other variants. “That’s the big uncertainty now,” Topol said. “We have to count on it being a lot of hospitalisations and a lot severe disease from Omicron.”

CDC’s estimates are based on thousands of coronavirus specimens collected each week through university and commercial laboratories and state and local health departments. Scientists analyze their genetic sequences to determine which versions of the COVID-19 viruses are most abundant.

On Monday, the CDC revised its estimate for Omicron cases for the week that ended 11 December after analyzing more samples. About 13 percent of the cases that week were from Omicron, not the 3 percent previously reported. The week before, Omicron accounted for just 0.4 percent of cases.

Though there remain a lot of new infections caused by the delta variant, “I anticipate that over time that Delta will be crowded out by Omicron,” Walensky said.

With input from The Associated Press

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