2021/02/21 18:37 Britain s Prime Minister Boris Johnson speaks with health workers Liz Hallett, left and Wendy Warren during a visit to a vaccination centre in Cwmbran. Britain s Prime Minister Boris Johnson speaks with health workers Liz Hallett, left and Wendy Warren during a visit to a vaccination centre in Cwmbran, south Wales, Wednesday Feb. 17, 2021. (Geoff Caddick/Pool via AP) A pedestrian wearing a face covering due to the Covid-19 pandemic walks past blooming daffodils in a park in London, Friday, Feb. 19, 2021 as the lock. A pedestrian wearing a face covering due to the Covid-19 pandemic walks past blooming daffodils in a park in London, Friday, Feb. 19, 2021 as the lockdown in Britain continues. Britain has given a first vaccine shot to over 15 million people, almost a quarter of the population.(AP Photo/Frank Augstein)