The Race for a Vaccine

A vaccine for Covid-19 could come faster than previous vaccines, but it could still be a year or more before one is widely available. CNN's Chief Medical Correspondent Dr. Sanjay Gupta talks to a clinical trial participant and explains why this vaccine search is breaking barriers but will still take time. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices