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Pfizer And BioNTech Have Stated That Their COVID-19 Vaccine Was Very Effective And Exceeded Expectations. The Vaccine Results Showed That Folks Injected Twice, 3 Weeks Apart, Experienced >90% Fewer Cases Of Symptomatic Covid-19 Than Those Given A Placebo. But Experts Have Indicated The Hurdles To Cross Before Approving The Vaccine.

Covid-19 vaccine from Pfizer and BioNTech is strongly effective, data show

https://www.statnews.com/2020/11/09/covid-19-vaccine-from-pfizer-and-biontech-is-strongly-effective-early-data-from-large-trial-indicate/

The companies said an early analysis of results showed the vaccine to be more than 90% effective, beating expectations.