Two-thirds of people infected with Omicron say they had previously had COVID-19: UK study


About two-thirds of people recently infected with the Omicron variant have previously been infected with COVID-19, according to a new study in the United Kingdom.

Of the 3,582 people who tested positive for the CCP (Chinese Communist Party) virus between January 5 and January 20, 2,315 (64.6%) had previously been infected with COVID-19. The researchers found it.

Professor Paul Elliott (Leading React-1 Studies at Imperial College London)pdf), Said that these cases could not be technically classified as re-infectious diseases because they may have been positive twice for the same infection.

The data could not indicate at what point in the past people were positive for COVID-19.

The UK Health Security Agency (UKHSA) has announced that it will begin including data on potential reinfections in its COVID-19 dashboard from the end of January.

A positive result more than 90 days after the previous infection is considered a reinfection.

The reinfection dates back to the beginning of the 2020 pandemic and will be published and added together with the UK’s daily total. Data for Wales, Northern Ireland and Scotland will be added as soon as possible.

South African researchers, who first detected the Omicron mutant in November 2021, found that the mutant was superior to the delta and beta mutants in avoiding immunity from previous infections. ..

Omicron has also been found to be much more effective in infecting people vaccinated with COVID-19.

According to new data from the React-1 study, the peak of the Omicron wave in the UK was around January 5, and cases had leveled off by mid-January.

The highest prevalence was 4.41% between January 5th and 20th. That is, one in 23 people in the United Kingdom was infected with COVID-19 during this period.

The data also show that Omicron has become the dominant variant in the United Kingdom and has almost completely replaced Delta.

Health Minister Sajid Javid said, “I am relieved to see that COVID-19 infections are starting to slow down nationwide,” but it is “extremely important” to remain vigilant.

Some scientists have already predicted that COVID-19 will soon become endemic.

Professor David Hayman of the London School of Economics and Tropical Medicine said on January 11 that the UK is probably “a country that hasn’t escaped the pandemic and is the closest country to a country that hasn’t escaped the pandemic.” Said. As endemic. “

Paul Hunter, a professor of medicine at the University of East Anglia, also said on December 28 that COVID-19 would be “another cause of the common cold.”

Zachary Stieber, Petr Svab, and PA Media contributed to this report.

Alexander Chan

follow