Risk of death cut by 80% after one dose of AZ and 97% after two doses of Pfizer

One dose of AstraZeneca cuts the risk of death with Covid-19 by 80% and tow doses of Pfizer reduce it by 97%, data shows (Ben Birchall/PA)
One dose of AstraZeneca cuts the risk of death with Covid-19 by 80% and tow doses of Pfizer reduce it by 97%, data shows (Ben Birchall/PA)

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