Pubs may need to shut down in order for schools in England to reopen next month, an expert has told the BBC.
Prof Graham Medley, a scientists advising the UK government, said there might need to be a "trade-off", with pubs closing so schools can open.
He said the re-opening of schools was seen as a "priority" for children's wellbeing.
On Friday, Prime Minister Boris Johnson said any further easing of lockdown restrictions would be delayed, as the country continued to experience rising Covid-19 numbers.