Ex-FDA Chief Sees 'Struggle' To Vaccinate More Than Half U.S. Population

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Dr. Scott Gottlieb, then commissioner of the Food and Drug Administration, testifies during a House hearing on in October 2017. In an NPR interview, Gottlieb says he doesn

Dr. Scott Gottlieb doesn't expect enough demand for the vaccine much beyond 160 million Americans. But he says there may eventually be enough immunity to curb the spread of the coronavirus.

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