People are 8 times more likely to have blood clots from Covid than from Oxford Jab, study finds

Woman receives second dose of Oxford AstraZeneca Covid-19 vaccine in Haringey, north London

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People with Covid are eight times more likely to suffer from blood clots than people who receive the AstraZeneca vaccine, according to a new study.
Researchers at the University of Oxford, where the vaccine was developed, found that the clotting potential – known as CVT – is eight to 10 times more likely in Covid than in those who were inoculated.

In the study of 500,000 patients infected with the virus, CVT occurred 39 times out of a million, with 30% of cases being found in those under the age of 30.

About five in a million cases of blood clotting have been reported after a patient receives a first dose of AZ vaccine.

Compared to mRNA vaccines, the risk of CVT from Covid is about 10 times higher, and eight times higher if a person receives the Oxford vaccine, the researchers concluded.

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Sir John Bell
(Image: PA)

Professor Sir John Bell, Regius Professor of Medicine at the University of Oxford, told Sky News today that vaccine-related blood clotting events are “extremely rare”.

He added: “The best way, if you want to have a bad bleeding problem, is to get Covid.

“And if you don’t get a vaccine you’re going to get Covid, and if you get Covid you’re going to have a very, much higher risk of having a bad bleeding problem.

Woman receives second dose of Oxford AstraZeneca Covid-19 vaccine in Haringey, north London
(Image: Dinendra Haria / LNP)

“So the vaccine’s clotting issues are pretty insignificant compared to the real risks of having clotting issues if you get Covid. “

Other coronavirus vaccines could have “some background level of clotting problems” but the risk data is not yet clear enough, he continued.

“We do not have sufficiently clear data on the risks of these strange clots with the different vaccines, and these data are being gathered at the moment,” said Professor Bell.

“We know for sure that there is a small risk associated with the AstraZeneca vaccine but also with the JJ vaccine (Johnson & Johnson).

“I suspect there will be risks associated with other vaccines that use the spike antigen as a target.

NHS staff member administers second dose of Oxford AstraZeneca Covid-19 vaccine to woman at vaccination center in Haringey, north London
Over 30 million people received first dose in UK
(Image: Dinendra Haria / LNP)

“It’s more a function of the peak antigen, which is the thing you do your antibody response to, than it’s how you give the vaccine. “

Commenting on the potential of combining doses of different vaccines, he said, “I suspect that all of these vaccines are going to have basic clotting issues, so I’m not sure that by mixing them you are going to make a big difference. . ”

But he added that the mixture of vaccines could give a “broader and stronger immune response”.

It comes after the UK medicines regulator advised people under 30 to be offered an alternative to the AstraZeneca vaccine, as research continues on possible links to rare blood clots.

Where applicable, the Medicines and Health Products Regulatory Agency (MHRA) has said that Pfizer, Moderna or another vaccine should be given to people between the ages of 18 and 29.

Those of any age who are at a higher risk of blood clots due to pre-existing medical conditions should also receive the vaccine only if the benefits of protection outweigh the potential risks, he added.

Pregnant women, already predisposed to thrombosis. should also discuss the vaccine with their doctor.

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