Covid-19 vaccine, the latest positive step as the UK aims to return to normal by late summer.With the number of cases still hitting over 10,000 a day, the UK has some way to go before we see a return to pre-pandemic life, but is normality within touching distance?Though the UK is ahead of schedule in its vaccine roll-out, with more than 1,000 people receiving their jab per minute at one point on Saturday, scientists and experts alike have urged the public not to become lenient with coronavirus safety measures such as social distancing.It is well documented that both the current vaccines in circulation as well as the ones still facing clinical trials work, but England's Chief Medical Officer Chris Whitty has warned it can take several weeks.