When the world went on lockdown to stop the spread of coronavirus, it was following a playbook used for centuries. Journalist Nicola Twilley joins host Krys Boyd to talk about how and why quarantines have been used throughout history – and about how the technique has been updated to fight modern threats. Her book, written with Geoff Manaugh, is called “Until Proven Safe: The History and Future of Quarantine.”

Associated Press