BBC Radio 4's celebrated 'The Life Scientific' has featured some of the world's most renowned experts in the field of deadly viruses. The interviews make sobering reading, a reminder of all the deadly viruses that have threatened global health, and why for the scientists working on the front line in the war against viruses, the arrival of Covid-19 came as no surprise. Among the contributors to this all-too-timely book are: Jeremy Farrar, Peter Piot and Jonathan Ball.