Pfizer vaccine is 95% effective, company to seek FDA approval within days

The coronavirus vaccine developed by Pfizer and BioNTech is 95% effective at preventing COVID-19, the companies announced Wednesday (Nov. 18). They plan on seeking regulatory approval “within days.”

Last week, Pfizer announced that an early analysis revealed its vaccine to be more than 90% effective at preventing an infection, greatly exceeding public health experts’ expectations, Live Science reported. Since then, enough participants in the trial have become infected with the virus for a final analysis.

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