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FDA Director: The Agency Expects to Approve Pfizer's Vaccine After Today's Crucial Hearing

After the panel's vote, Commissioner Stephen Hahn said, the FDA plans to "act quickly."

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This story originally appeared on Business Insider

A panel of independent experts is meeting today to evaluate Pfizer's coronavirus vaccine. By day's end, they're expected to come to a vote that will advise the U.S. Food and Drug Administration (FDA) to approve or deny the shot for emergency use. 

Sarah Silbiger-Pool | Getty Images via Business Insider
Stephen Hahn, commissioner of food and drugs at the U.S. Food and Drug Administration (FDA).

But FDA Commissioner Dr. Stephen Hahn said the outcome is already predictable, and that the agency intends to act on the advisory panel's advice immediately. "We'll have to see what the scientific and medical discussion is today. But our plan is to take their recommendations into account for our decision making and make a decision shortly thereafter ... We intend to act quickly," he told Savannah Guthrie live on NBC News' TODAY before the advisory committee convened. 

The head of the FDA assured, "Our initial assessment is that this is a vaccine that does meet our criteria … But we do want to hear from the vaccine advisory committee."

Related: Pfizer Says Its Covid-19 Vaccine Is 90% Effective (Updated)

If indeed approved, high-priority Americans, including nursing home residents and healthcare workers, are expected to begin getting the vaccine in the next couple days. 

Pfizer's vaccine has been shown to be safe and 95% effective at preventing symptomatic Covid-19. But the advisory committee will likely discuss the pros and cons of approving a vaccine that still has a lot of unknowns, like whether it protects against asymptomatic infection and "silent spreading," how long its protection against Covid-19 lasts and whether there's enough data on older Americans to justify injecting some of them first.