Pfizer Vaccine Efficacy
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Canada says COVID-19 boosters may be needed but no approval request from Pfizer yetPfizer and BioNTech announced Thursday they are developing a COVID-19 booster shot to target the highly transmissible Delta variant.CanadaJul 9, 2021
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Pfizer, AstraZeneca vaccines 87% effective in 60+ age group after one dose: dataThe analysis is based on more than 3.5 million people in South Korea aged 60 and older and included 521,133 people who received a first dose of either Pfizer or AstraZeneca.WorldMay 7, 2021
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Pfizer says its vaccine is 94 per cent effective in preventing asymptomatic infectionThe analysis also shows real-world evidence of the vaccine's effectiveness against a highly infectious variant of COVID-19 first discovered in Britain.WorldMar 11, 2021
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Pfizer says COVID-19 vaccine can be stored at higher temperaturesThe update comes as two studies from Israel found that the vaccine greatly reduced virus transmission, and the shot was backed by two of the S. African government's top advisers.HealthFeb 19, 2021
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