Jenny Harries, England’s deputy chief medical officer, has hinted face mask rules may change in summer 2021.
The health secretary stressed the public will have to learn to live with the disease.
The PM has left people wondering whether lockdown could be relaxed in weeks – or if it is a "long, long, long way" off.
Uncertainty aplenty in latest press conference.
The prime minister will be joined at 5pm by chief scientific adviser Patrick Vallance and chief medical officer Chris Whitty.
Will that grim milestone of 100,000 deaths prompt any self-reflection?
A zero-Covid strategy works and should be prioritised. Lives will depend on it, writes researcher Jay Patel.
The figures also include another 830 deaths and come just a day after Boris Johnson announced a third lockdown.
Pre-Christmas press conference a microcosm of scientific candour versus political calculation
Chief scientific officer says more areas are likely to be put under the strictest restrictions "in due course".