Questions are raised about why ministers are being 'secretive' about jab numbers as the PM vows to vaccinate round the clock when it is possible to do so.
Another 1,564 coronavirus deaths were recorded in the UK on Wednesday - the highest daily figure since the pandemic began.
Boris Johnson says he believes around four million people have now had their first dose of the COVID-19 vaccine, but warned that "we're not out of the woods".
The offer of the jab has now been extended to all people over 70 and those who are clinically extremely vulnerable. Prime Minister Boris Johnson said that the success of vaccines against COVID-19 should 'not be allowed to breed complacency about the state of the pandemic'.
He said he didn't want to have to impose further lockdown restrictions, but that now is the moment for maximum observance of the rules. As countries around the world prepare for approving and rolling out Covid-19 vaccines, a group of experts is raising concerns that many governments are not publishing important data about Covid-19 and gender. Evidence is emerging of differences between women and men in terms of testing, hospitalizations and deaths. "The three leading vaccines haven't recorded their results according to gender, which is problematic", says Professor Kent Buse, co-founder of Global Health 50/50. Prime Minister Boris Johnson announces tighter restrictions for Christmas and introduces Tier 4 lockdown for London and parts of the South East and East of England following a surge in infections and the new strain of COVID-19.