A major review of vaccines suggests the AstraZeneca jab does raise the risk of blood clots and another serious condition that can cause bleeding.
But the study found the risk of such problems following a coronavirus infection was still much higher.
The University of Oxford-led team also found an increased risk of stroke after the Pfizer jab – but again at a much lower rate than after infection.
The team said it once again showed the “substantial” benefit of vaccination.
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