People Who Have Had COVID Get “Enhanced” Protection Against Vaccine Dose Variants – Study | UK news


For people who have received a dose of a COVID-19 vaccine, the sting appears to offer better protection against variants if they had the virus before.

Scientists have found that among those who have received a single shot but have not been infected in the past, the immune response to worrying variants may be inadequate, and even been labeled “weak” – but it is still enough to get some To have influence.

In contrast, for those who have signed contracts Coronavirus Previously, a vaccine shot offered the experts “greatly improved” protection.

Imperial College researchers studied the immune responses of health care workers at Barts and Royal Free hospitals in London after their first dose Pfizer / BioNTech vaccine.

They found that people who had previously contracted COVID-19 and had mild or asymptomatic symptoms that had protection against the “significantly improved” Kent and South Africa Variants after the first push.

And it is possible that the results apply to other variants in circulation, such as those first identified in Brazil and IndiaExperts believe.

The study involved 731 healthcare workers, around 20% of whom had previously received COVID and contracted mainly during the UK’s initial lockdown.

Rosemary Boyton, Imperial professor of immunology and respiratory medicine who led the research, said, “We found that if you had a history of (COVID-19) infection, you really, really had greatly improved responses.”

She said they were “in a different league” on immune response, adding, “Previous infection saves your response against variants.

“It is much more likely that you are protected against the Wuhan tribe, but also against the variants.”

Prof. Boyton said those who have not had COVID before have “given off less strong immune responses, potentially making them susceptible to infection,” and this highlighted the importance of a second dose of vaccine.

Danny Altmann, professor of immunology at Imperial University, described the immune response of a vaccine dose as “weak” for those who were not previously infected, but added that it was still enough to have some effect.

“It’s very weak compared to two doses,” he said.

When asked if the time between two vaccine doses – which is currently 12 weeks in the UK – should be shortened, Prof. Altmann said the research has no policy implications and “if it’s not broken, don’t fix it”.

He said, “We have a lot of people who are either not given a dose or a vaccine dose. We have a window of vulnerability to consider at a time when there are many worrying variants around the world.”

Another 122,039 people had their first dose of vaccine on Thursday, the total to 34,216,087.

And 488,914 people had their second sting, which means 14,532,875 are now fully vaccinated.

Separate figures show that the number of people estimated to have COVID in England has decreased by 40% in a week.

According to data from the Office for National Statistics (ONS), which covers private households, around 54,200 people are likely to have tested positive for the virus in the week leading up to April 24.

That’s a decrease from 90,000 the previous week, meaning about one in 1,010 people in private households in England had COVID in the week ending April 24 – a decrease from one in 610.

And it’s the lowest since the week leading up to September 5, when the estimate was one in 1,400.

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