Risk of blood clots after AstraZeneca Covid jab is 'small'

Risk of blood clots after AstraZeneca Covid jab is 'small'

The new study, led by researchers in Denmark, assessed the rates of heart and blood clot "events" in the first 28 days after people were jabbed with the Oxford/AstraZeneca vaccine in Denmark and Norway.

In a linked editorial, United Kingdom scientist Professor Paul Hunter from the University of East Anglia, said the findings showed countries were wrong to pause using the Oxford jab.

Previously, the MHRA has said the balance of risk for the AstraZeneca vaccine against Covid is very favourable for older people but "more finely balanced" for younger groups, who do not tend to suffer serious coronavirus illness.

The move is a precautionary one after evidence of young people suffering from blood clots once they were given the AstraZeneca jab increased.

But the researchers cautioned that the risks linked to the jab should be "interpreted in the context of the benefits of Covid-19 vaccination".

"Among recipients of ChAdOx1-S (the Oxford /AstraZeneca vaccine) increased rates of venous thromboembolic events, including cerebral venous thrombosis, were observed", they said. Meanwhile, 17 million doses of the Moderna vaccine have been ordered.

The case incidence of the rare brain clots combined with low platelet counts is roughly 9 per million dose.

Officials at the MHRA, which monitors possible side effects of the jabs, have counted 168 cases of blood clots following vaccination with the British jab in the United Kingdom so far.

The release said, "This second delivery of vaccines from the Covax facility and the remaining doses of vaccines donated by the Government of India will now be held to guarantee the second dose of the AstraZeneca vaccine for those who received the first dose".

Pakistan was supposed to get the first tranche of AstraZeneca's Covishield vaccine through COVAX in March but the vaccine supply was delayed after the Serum Institute of India (SII) diverted the supplies to meet its domestic needs, officials said.

The Vaccines Taskforce placed an original order for 40 million Pfizer doses, with a further order for another 60 million announced last week. The current jabs are modelled on the Wuhan variant which is no longer dominant.

The federal ministry official maintained that another consignment of the vaccine has been committed in June alongside "a little over 0.1 million" Pfizer's Covid-19 vaccine doses, adding even Moderna's vaccine could be supplied to Pakistan through COVAX.

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