Pfizer chairman Albert Bourla told NBC's Dateline host Lester Holt that the pharmaceutical company was "not certain" if the vaccine prevented the coronavirus from being transmitted, saying: "This is something that needs to be examined." In a prime-time special titled "Race for a Vaccine" ... Holt questioned Bourla and other individuals involved in the development and distribution of the vaccine. In November, Pfizer announced that its vaccine candidate had been shown to be more than 90% effective at preventing COVID-19 and has applied for emergency use authorization from the Food and Drug Administration (FDA). The U.K. became the first country to approve Pfizer's vaccine this week with the first round of immunizations expected to roll out next week. In August, Canada signed a deal with Pfizer for 20 million doses of the vaccine. In a list of interview highlights released before the special, Holt asked Bourla: "Even though I've had the protection, am I still able to transmit it to other people?" "I think this is something that needs to be examined. We are not certain about that right now with what we know," Bourla responded.
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