The President's New Advisor Is A Fan Of 'Herd Immunity' — And Scientists Are Worried

winter with very few cases of the flu. That could be thanks to social distancing measures in place to fight the coronavirus.

NPR's Nell Greenfieldboyce reported on flu in the southern hemisphere and the possibility that it could mix with the coronavirus.

NPR's Tamara Keith and Geoff Brumfiel take a look at President Trump's new health advisor, Dr. Scott Atlas. He has no background in infectious diseases and his ideas are worrying scientists who do.

Mary Louise Kelly spoke with Moncef Slaoui, chief adviser for the coronavirus vaccine development program, Operation Warp Speed, about the status of vaccines in the U.S.

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An advertisement offering free flu shots is seen in New York City. John Nacion/LightRocket via Getty Images hide caption

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John Nacion/LightRocket via Getty Images

An advertisement offering free flu shots is seen in New York City.

John Nacion/LightRocket via Getty Images

This episode was produced by Brianna Scott, Lee Hale and Brent Baughman. It was edited by Sami Yenigun and Beth Donovan with help from Wynne Davis. Our executive producer is Cara Tallo.