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Covid-19 news: Pfizer coronavirus vaccine is 'more than 90% effective'


A coronavirus vaccine candidate being developed by Pfizer is “more than 90% effective in preventing covid-19”, according to early results, the company announced today. The results have been described as “reason for optimism for 2021” by Chris Whitty, England’s chief medical officer. Joe Biden, US president-elect, said this was “excellent news”, but warned that “the end of the battle against covid-19 is still months away” as it will take “many more months before there is widespread vaccination.” Pfizer said that an early analysis of the results from the phase III trial found more than 90 per cent fewer symptomatic coronavirus cases among trial participants who received two doses of the vaccine candidate three weeks apart compared to those who received a placebo. So far in the trial, 38,955 people have received two doses of either vaccine or placebo as of 8 November, and there have been 94 confirmed coronavirus cases in total among them. The results have not been peer-reviewed or published in a scientific journal, and Pfizer said further analysis will occur once there have been 164 confirmed coronavirus cases among the participants. Pfizer is developing the vaccine in partnership with German biotechnology company BioNTech.

New Scientist - November 9, 2020

View the full story here: https://www.newscientist.com/article/2237475-covid-19-news-pfizer-coronavirus-vaccine-is-more-than-90-effective/