Paul Offit professor of pediatrics at the Perelman School of Medicine at the University of Pennsylvania, on why medical progress always carries risk. Wu staff writer at The Atlantic, on the slippery definitions of our pandemic vocabulary. Plus, why a preference for simple stories has made it so hard to keep track of the pandemic.
And, why the history of medical progress is filled with so many twists and turns. On this week's On the Media, why the terms we use to talk about the virus obscure as much as they reveal.