Scientists compared rates of thrombosis among more than 1.3million recipients of either jab in Spain.
Both vaccines came with a tiny risk of causing blood clots, with scientists branding their safety profiles 'broadly similar'. Pfizer's jab may even be more likely to trigger the rare blood-clotting complication, the data suggested.
www.dailymail.co.uk/news/article-9838639/AstraZeneca-vaccine-risk-blood-clots-Pfizers-study-finds.html