WASHINGTON — In late March, Krispy Kreme made an offer: Any customer showing a coronavirus vaccination card would receive a free doughnut.
Some celebrated the move as the kind of public health nudge that could hasten vaccine uptake, but Dr. Leana Wen was not among those cheerleaders. The former Baltimore public health commissioner, who has become a prominent media commentator on the pandemic, took to Twitter to criticize Krispy Kreme. “Every incentive helps & free donuts may help move the…
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