Millions of people are being told to shield and stay at home at all times as England enters its third national coronavirus lockdown.
The guidance was already in place for Tier 4 areas and it could remain for months after Michael Gove admitted this shutdown - triggered by a new, more infectious variant of Covid-19 - could drag on into March.
New shielding letters are to be sent to those deemed clinically extremely vulnerable. The latest Government guidance, yet to be updated following Monday night's lockdown announcement, says people who are extremely vulnerable should only go out for medical appointments, exercise or another essential reason.