UK regulator found 30 cases of blood clot events after AstraZeneca vaccine use

Reuters

Posted at Apr 02 2021 09:20 AM | Updated as of Apr 02 2021 10:20 AM

A dose of the AstraZeneca COVID-19 vaccine is prepared in a vaccination center at Newmarket Racecourse, amid the coronavirus disease outbreak in Newmarket, Britain, March 26, 2021. Andrew Couldridge, Reuters/File

British regulators said Thursday they had identified 30 cases of rare blood clot events after the use of the AstraZeneca COVID-19 vaccine, 25 more than the agency previously reported.

The Medicines and Healthcare products Regulatory Agency said it had received no such reports of clotting events following use of the vaccine made by BioNTech SE and Pfizer Inc .

The health officials said they still believed the benefits of the vaccine in the prevention of COVID-19 far outweigh any possible risk of blood clots.

Some countries are restricting use of the AstraZeneca vaccine while others have resumed inoculations, as investigations into reports of rare, and sometimes severe, blood clots continue.

On March 18, the UK medicines regulator said that there had been 5 cases of a rare brain blood clot among 11 million administered shots.

On Thursday, it put the count at 22 reports of cerebral venous sinus thrombosis, an extremely rare brain clotting ailment, and 8 reports of other clotting events associated with low blood platelets out of a total of 18.1 million doses given.

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