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Pfizer says COVID-19 shot is 91 per cent effective in updated data, protective against South African variant – ABC News

Pfizer and BioNTech say their COVID-19 vaccine is about 91 per cent effective at preventing the disease, citing updated trial data that includes participants inoculated…

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Pfizer and BioNTech say their COVID-19 vaccine is about 91 per cent effective at preventing the disease, citing updated trial data that included participants inoculated for up to six months.
Key points:

  • The new overall efficacy rate of 91.3 per cent is lower than the 95 per cent originally reported in November
  • A number of variants have become more prevalent around the world since then
  • The drugmakers plan to submit for full US regulatory approval

The shot was also 100 per cent effective in preventing…

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