Vaccines have saved millions of lives, but they’ve also become victims of their own success. They’ve done such a good job that we’ve forgotten what serious infections like polio and diphtheria look like. On the first episode of The Antigen, host Yasmeen Agosti takes us through vaccine basics with the help of experts Dr. Kathryn Edwards, Dr. Peter Hotez, Martha Rebour, LJ Tan, and Serese Marotta, who explain why vaccines are more relevant now than ever.