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Coronavirus: Scientists greet Pfizer announcement that vaccine is 90% effective with optimism

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Coronavirus: Scientists greet Pfizer announcement that vaccine is 90% effective with optimism

November 9, 2020

Two scientists in the United Kingdom expressed cautious optimism on Monday about the recent early snapshot Pfizer provided of its Phase 3 trials for its coronavirus vaccine, which data has suggested is 90 per cent effective at preventing the virus.

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