Why I'm Optimistic

More than 33 million Americans have received at least one dose of a Covid-19 vaccine from Pfizer/BioNtech or Moderna. Johnson & Johnson’s vaccine candidate could receive an emergency use authorization in the coming weeks. CNN Chief Medical Correspondent Dr. Sanjay Gupta is optimistic, and he’s going to tell you why. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices