More than two-thirds of Omicron cases are re-infected, according to a UK study

More than two-thirds of Omicron cases are re-infected, according to a UK study, New studies have found that Omicron has almost completely replaced the delta variant of Covid-19, which was previously predominant in the United Kingdom.

More than two-thirds of Omicron cases are re-infected, according to a UK study

More than two-thirds of those who tested positive in the study said they had confirmed that they had suspected Kovid in the past.

Omicron is a significantly modified, highly contagious Covid-19, causing record numbers of Covid infections in many countries.

Reaction Studies at Imperial College London-Updated monthly from May 2020 and published in the UK. Government Funding-100,607 PCR test results from across the UK were analyzed. Swabs were collected between January 5th and January 20th.

Studies show that 99% of sequenced positive swabs are from people infected with the Omicron variant, and only 1% of infections are caused by the delta variant.

"In January 2022, an unprecedented level of SARS-CoV-2 infection was seen in the United Kingdom, replacing deltas with omicrons almost completely," the study authors said in a study published Wednesday. ..

Ability to re-infect

Of the 3,582 participants who tested positive in January, two-thirds said they had previously tested positive for covid. Another 7.5% of infected participants said they had previously been suspected of being infected with the virus, but testing did not confirm this.

When early Covids spread to the population, early Covid infections, in which people caught and recovered the virus, were thought to provide some protection against reinfection. However, there are concerns that this is not the case for Omicron. Health officials estimated in December that the risk of reinfection with Omicron was 5.4 times higher than that of the Delta type.

On Wednesday, researchers pointed out that the transmission of Omicron led to the outbreak of the best Covid seen in REACT studies.

"Vaccines (including booster campaigns) [Covid-19] continue to be the mainstay of defense against hospitalization because of the high level of protection against hospitalization," the research team said.

"But while it seems unlikely that Omicron will cause serious illness, if the infection rate of Omicron remains very high, further steps beyond vaccination may be needed."

Omicron is a significantly modified, highly contagious covid that has been identified by health authorities in at least 171 countries and has caused a record number of covid cases in many countries.

On Monday, WHO Executive Secretary Tedros Adamam told the Ghebreissas board that more than 80 million Covid cases have been reported to WHO since the variant was identified nine weeks ago. Last week, an average of 100 cases were reported every 3 seconds, with one person dying from the virus every 12 seconds, Tedros said.

According to a recent REACT survey, coronavirus infections declined in the United Kingdom in early January, after which one in 23 people became infected "on the plateau."

Of the tests conducted in the final round of the survey, 4.4% were positive, a triple increase from December.

On Tuesday, the United Kingdom temporarily recorded 94,326 new covid cases and 439 deaths within 28 days of a positive test result. By the end of December, covid infections peaked in Japan, with 246,415 positive test results recorded in one day.

England will abolish most of the remaining coveted arrangements on Thursday. Masks are no longer required and the general public is no longer encouraged to work from home. About 85% of the country's eligible population (aged 12+) are fully vaccinated against covid and 64% are booster shots.

BA.2'Variant under investigation'

A study at Imperial College further found that 0.4% of positive tests were due to the BA.2 omicron subspecies.

According to WHO, Omicron infection is currently composed of four subvariants, with the BA.1 strain being the most influential, while trends in India, South Africa, and Denmark indicate that BA.2 is more prevalent. I am.

Sky News reported last week that UK medical institutions have designated BA.2 as a "survey variant" despite several subclan cases.