The "public health emergency of international concern" was issued by the WHO a year and a lifetime ago. As the UK ramps up testing for the South African virus variant, and is full steam ahead on vaccination, we look back at what we've learned in that time.

In this podcast, Fiona Godlee, editor in chief of The BMJ, talks to; Partha Kar, consultant in diabetes and endocrinology in Portsmouth, Matt Morgan, a consultant in a intensive care medicine in Cardiff, and Helen Salisbury, GP in Oxfordshire.

They talk about working in the NHS at the moment, the utility of international comparisons, and their remaining questions about vaccination regimes.

www.bmj.com/coronavirus