As UK Covid cases fall to lowest level for a year, what could the future look like?

The UK has eased back towards normality, but testing habits have changed and cases could rise as the weather changes. Photograph: Andy Rain/EPA

After enduring record-breaking levels of Covid in the past six months, Britain has seen cases fall to their lowest for a year. But as the country eases back into a life more normal, will the disease remain in the background – or is another resurgence on its way?

Science editor Ian Sample explains how the virus is changing – and why one expert thinks infection rates “are not going to get down to very low numbers again in our lifetimes”.