COVID-19 cripples sport, and what is 'herd immunity'? | 13 March 2020

On this edition of the Sky News Daily podcast, Jonathan Samuels discusses how being infected with the virus could protect society from future outbreaks.We're joined by microbiologist Dr Simon Clarke and our science correspondent Thomas Moore, plus author Dr Stuart Waiton and our sport correspondent Martha Kelner look at the impact on sporting events.