Episode 157: Mercedes Carnethon on outdoor masking, FDA in limbo, & gene therapy's uncertain upside

Summary: First, Northwestern University epidemiologist Mercedes Carnethon joins us to weigh on the nation's latest Covid-19 debate: Is it OK to go maskless outdoors? Then, STAT Washington correspondent Nicholas Florko calls in to talk about why the Biden administration is waiting so long to nominate an FDA commissioner and how that indecision could have real consequences. Later, we discuss the scientific promise of novel treatments for sickle cell disease — and the industry's growing concern that they might not be as lucrative as once thought. And, naturally, we recap the latest news in the Covid-19 vaccine rollout.