509 - The Threat of Polio

<p><span style="font-weight: 400;">The first case of paralytic polio in New York in decades has focused attention on a devastating virus with a long and terrible history.</span> <strong>Olakunle Alonge</strong><span style="font-weight: 400;">, an associate professor of international health at Johns Hopkins, who’s worked on polio eradication efforts around the world, speaks to</span> <strong>Josh Sharfstein</strong> <span style= "font-weight: 400;">about what's behind the rise in cases and how the world can defeat polio—forever.</span></p>