Pfizer's COVID-19 vaccine found effective in big 'real world' test, prevents illness and death
Pfizer's COVID-19 vaccine found effective in big 'real world' test, prevents illness and death
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Zee News
Pfizer's COVID-19 vaccine was 92% effective at preventing severe disease after two shots and 62% after one. Its estimated effectiveness for preventing death was 72% two to three weeks after the first shot, a rate that may improve as immunity builds over time.
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February 25, 2021 at 07:54AM
Zee News :World
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https://ift.tt/3sCLXSX
Zee News
Pfizer's COVID-19 vaccine was 92% effective at preventing severe disease after two shots and 62% after one. Its estimated effectiveness for preventing death was 72% two to three weeks after the first shot, a rate that may improve as immunity builds over time.
https://ift.tt/eA8V8J
February 25, 2021 at 07:54AM
Zee News :World
https://ift.tt/1RFfcdl
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