AstraZeneca vaccine is safe and no blood clot issues, new US trial data shows


AstraZeneca’s coronavirus vaccine is both safe and highly effective, new trial data from the United States shows.

Research involving more than 30,000 participants revealed the jab was 79 per cent effective at preventing symptomatic Covid-19 and 100 per cent effective at preventing severe illness and hospitalisation.

Scientists also said there were no concerns associated with blood clots, adding weight to rulings by UK and European regulators that the AstraZeneca jab is safe to use.

The study, which involved 32,449 participants in the US, Chile and Peru – 20,000 of whom were given the vaccine, with the rest given dummy jabs – also found the vaccine was effective in all ages, including the over 65s.

Rollout of the AstraZeneca jab to older age groups had a delayed start in several European countries over what officials on the continent said was a lack of data to prove its efficacy.


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