Polio in New York – an infectious disease doctor explains this exceedingly rare occurrence

The oral polio vaccine – which is no longer given in the US – relies on a live but weakened virus that can actually be passed from person to person.

William Petri, Professor of Medicine, University of Virginia • conversation
July 22, 2022 • ~6 min

The US isn't in a second wave of coronavirus – the first wave never ended

The recent spike in new coronavirus cases in the US is not due to a second wave, but simply the virus moving into new populations or surging in places that opened up too soon.

Melissa Hawkins, Professor of Public Health, Director of Public Health Scholars Program, American University • conversation
June 30, 2020 • ~8 min

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