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The Pfizer/BioNTech COVID-19 vaccine candidate has 95% efficacy according to the latest analysis offered by the companies.
By Jon CohenNov. 18, 2020 , 6:45 AM
Science’s COVID-19 reporting is supported by the Pulitzer Center and the Heising-Simons Foundation.
Not to be outdone by a rival with a similar product, Pfizer and BioNTech today provided an update on the previously announced success of their COVID-19 vaccine. The U.S. pharma giant and its German biotech partner now report 95% efficacy for their vaccine candidate, drawing on the final analysis of a 43,000-person study. And don’t worry about the elderly not responding to the vaccine; the efficacy only drops to 94% in people older than 65, the companies said in a press release.
As opposed to the vague initial report last week that their vaccine had greater than 90% efficacy, Pfizer and BioNTech are providing more specific data now that the study has reached enough COVID-19 cases to end. In all, the trial had 162 confirmed cases of symptomatic COVID-19 in the placebo group versus eight among those who received the two scheduled doses of the vaccine. The efficacy, which was measured 7 days after the second dose of the vaccine, was the same in different races and ethnicities, …
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