oris Johnson will address the nation at 5pm on Wednesday after a jam-packed day of coronavirus and Brexit developments.
Officials hope the jab can be a “game changer” in the fight against the disease.
But the most significant announcement is set to be on schools, after Mr Hancock hinted that the Government may have to change its plans for a staggered opening from next week.
There has been growing concern from teaching unions and scientists about the spread of the virus following the discovery of its much more transmissible variant.
A YouGov poll conducted overnight suggested that 43 per cent of 7,999 British adults surveyed would “strongly support” keeping schools in England closed for two further weeks after the Christmas break.
Just 9 per cent “strongly oppose” and 10 per cent “somewhat oppose” keeping school gates shut, YouGov said.
