America got (more) serious last week about COVID-19. closings.html">Schools and colleges closed, workers went remote, professional sports teams canceled their seasons, theaters and restaurants closed their doors, and Americans hunkered down at home to reckon with the fragility of life as we know it.

We want to hear from you. Colin and an epidemiologist answer your questions.

Also this hour: Bernie Sanders and Joe Biden debated one-on-one Sunday in Phoenix before Tuesday's primaries in Arizona, Florida, Illinois, and Ohio. and-sanders-debated-as-if-the-last-three-weeks-never-happened.html">Did they forget the last three weeks happened?

GUESTS:

• Joseph Vinetz - Professor of infectious diseases at Yale University
• Edward-Isaac Dovere - Host of the The Ticket podcast; he's writing a book, You Are Right to Be Concerned: Democrats in Crisis in the Trump Years
• Daniel Pollack-Pelzner - The Ronni Lacroute Chair in Shakespeare studies at Linfield College

Join the conversation on Facebook and Twitter.

Colin McEnroe and Cat Pastor contributed to this show.

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