Some scientists worry that a new vaccine-resistant strain of the virus could emerge. We speak to virologists about concerns that the UK's vaccine strategy could make an 'escape mutant' more likely. This podcast was brought to you thanks to the support of readers of The Times and The Sunday Times. Subscribe today and get one month free at: thetimes.co.uk/storiesofourtimes.Guests: - Rhys Blakely, science correspondent, The Times.- Paul Bieniasz, professor of virology, The Rockefeller University. - Deenan Pillay, professor of virology, University College London.Host: Manveen Rana.Clips used: PBS, 10 Downing Street YouTube channel. See acast.com/privacy for privacy and opt-out information.