BBC: Covid vaccines cut risk of serious illness by 80% in over-80s

BBC: Covid vaccines cut risk of serious illness by 80% in over-80s. “A single shot of either the Oxford-AstraZeneca or the Pfizer-BioNTech Covid jab reduces the chance of needing hospital treatment by more than 80%, an analysis in England shows. The Public Health England data showed the effect kicked in three to four weeks after vaccination.”

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