Demystifying the Vaccine

A recent vaccine trial from Oxford University shows promising preliminary results, suggesting the vaccine can produce immune responses that may protect people against infection. Dr. Sanjay Gupta spoke with Dr. Barney Graham, the deputy director of the Vaccine Research Center at the National Institutes of Health, about the science behind vaccines and how they work.

Om Podcasten

Join CNN Chief Medical Correspondent Dr. Sanjay Gupta for the latest news about the coronavirus. He'll make sense of the headlines, speak with the experts and give you all the information you need to stay safe and healthy.