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Real-world study shows Pfizer and Moderna COVID-19 vaccines give ‘substantial’ protection after first shot – SBS News

Data from a large, real-world study, shows Pfizer and Moderna COVID-19 vaccines reduced the risk of infection significantly after the first of two jabs.

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COVID-19 vaccines developed by Pfizer Inc with BioNTech SE and Moderna Inc reduced the risk of infection by 80 per cent two weeks or more after the first of two shots, according to data from a real-world US study released on Monday.
The risk of infection fell 90 per cent by two weeks after the second shot, the study of just under 4,000 vaccinated US healthcare personnel and first responders found.
The study by the US Centers for Disease Control and Prevention (CDC) evaluated the vaccines ability…

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