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

Now that normal life has resumed for most people, will the disease continue to remain in the background?

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".