Many experts have called for the reintroduction of some public health measures to reduce transmission rates. However, the government has repeatedly said it is not yet bringing in its so-called ‘plan B’ for England. Madeleine Finlay speaks to science correspondent Nicola Davis about what ‘plan B’ could entail and whether it would help us avoid the need for more stringent and longer-lasting measures down the line. Help support our independent journalism at theguardian.com/sciencepod