Pfizer CEO on coronavirus vaccine: ‘We will have an answer by the end of October

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Albert Bourla, chief executive officer of Pfizer Pharmaceuticals, talks to TODAY about the “historic pledge” made by nine drugmakers to not rush out a coronavirus vaccine without proper testing and says Pfizer will only submit a vaccine for authorization “when we have evidence of safety and efficacy.” He predicts that Pfizer “will have an answer by the end of October,” but adds that that does not mean actual distribution of a vaccine.