This was contained in a letter being sent to every UK household.
BORIS JOHNSON, who is self-isolating after testing positive for Covid-19, says stricter restrictions could be put in place if necessary.
Britons will also get a leaflet detailing government rules on leaving the house and health information.
It follows criticism over the clarity of government advice to date.
The number of people who have died with coronavirus in the UK has now reached one thousand and nineteen with a further two hundred and sixty deaths announced on Saturday.
There are now seventeen thousand and eighty nine confirmed cases in the UK.
