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We Hoped a Covid Vaccine Would Be Effective. But 90% Efficacy Is a True Game-Changer.

What I hear in Pfizer’s promising vaccine news

Photo: Kena Betancur/Getty Images

I can’t resist offering a few quick takes on the latest Pfizer vaccine news: 90% efficacy is far better than even the most optimistic projections. An election analogy that captures the “margin of victory” — these are like California results for…

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Robert Wachter, MD

Robert Wachter, MD

Professor & Chair, Dept of Medicine, UCSF. What happens when poli science major becomes an academic physician. Thinks/writes on digital, quality, safety, Covid.