Boris Johnson was joined by England's Chief Medical Officer Chris Witty and the UK's Chief Scientific Adviser Sir Patrick Vallance as he held the press conference from No.10 Downing Street on Tuesday afternoon.More than 1.3million people have received their first coronavirus vaccination so far in the UK, with the first Oxford/AstraZeneca jabs being rolled out on Monday.That includes 650,000 people aged over 80 – meaning 1-in-4 of the most vulnerable have already been vaccinated.Mr Johnson has previously said that "with a fair wind in our sails" it should be possible to vaccinate 13 million of the most vulnerable people by mid-February, paving the way for controls to be eased.Top of the priority list are people who live and work in care.