Pfizer Could Know if Vaccine Is Effective by End of October

Albert Bourla (R), chief executive officer of Pfizer, waits to ring the closing bell at the New York Stock Exchange in New York City, N.Y., on Jan. 17, 2019. Drew Angerer/Getty Images

American pharmaceutical company Pfizer’s chief executive officer said Sunday that there is a good chance the company will know whether its CCP virus vaccine is effective by the end of October.

Pfizer head Albert Bourla said during an appearance on CBS’s “Face the Nation” that, based on the company’s studies, the efficacy of the vaccine candidate it is developing in partnership with BioNTech SE will be known by the end of next month.