Coronavirus must be taken seriously again or the UK will face a "bumpy ride" in the coming months as infections spike, a medical chief has warned.
Professor Jonathan Van-Tam said the British public had "relaxed too much" over the summer and described the rising number of cases as a "great concern".
The deputy chief medical officer for England issued the warning as Caerphilly in south Wales prepared to be placed under local lockdown and stricter measures were extended in Scotland.
There were a further 2,948 lab-confirmed cases of coronavirus in the UK as of 9am on Monday, following the 2,988 reported on Sunday, which was the largest daily figure since May.