Summer of Freedom? Covid-19 Variants

Send us a text On this Back Story a lot of mixed messages out there on where we are in this pandemic. The UK and U.S. are rushing back to opening schools and economies because of vaccines, while most of the World is experiencing waves of new illness because of emerging variants. Even in Britain outbreaks of India variant is threatening progress on vaccines. On this edition of Back Story Dana Lewis talks to Eric Feigl-Ding and Deepti Gurdasani, both epidemiologists and health p...