Michael Ryan, the head of the World Health Organization’s emergencies programme, has said that while vaccines are effective tools, they are not the lone solution to ending the coronavirus pandemic. ‘Some people think that vaccines will be, in a sense, the solution, the unicorn we’ve all been chasing,’ he said during a virtual briefing in Geneva on Wednesday, warning other measures such as social distancing needed to be maintained. It comes after positive efficacy results from late-stage trials of two potential Covid-19 vaccinesPfizer Covid-19 vaccine has 95% efficacy and is safe, further analysis showsHopes of Covid vaccine for more than 1bn people by end of 2021 Continue reading...