Should rising Covid infections in England, Scotland and Wales cause concern?

Analysis: link between infections, hospitalisations and deaths has weakened but it has not been severed

Covid infections are rising in England and have reached unprecedented levels in Scotland and Wales. It is a picture that, in months gone by, would have caused alarm.

Yet with restrictions eased and the advice to stay at home if infected with coronavirus due to be lifted on 1 April, it would be easy to think the threat posed by Covid has been neutralised. Infections may rise, in other words, but our concern need not.