The director of the Oxford Vaccine Group, Professor Andrew Pollard, tells Today about the efficacy of the Oxford/AstraZeneca vaccine against the South African variant. Also, Dame Clare Gerada, former chair of the Royal College of GPs and Professor Adam Finn, professor of paediatrics at the University of Bristol and member of the Joint Committee on Vaccination and Immunisation, answer your vaccine questions.

(Image: Oxford/AstraZeneca vaccine, credit: Andrew Matthews/Getty Images)