The World Health Organization’s emergency director warned Wednesday that vaccines would not arrive in time to defeat the second wave of the Covid-19 pandemic. The AFP reports that the WHO’s Michael Ryan said vaccines should not be seen as a ‘unicorn’ magic solution — and countries battling a resurgence of the virus would once again have to ‘climb this mountain’ without them. Ryan warned against slackening off individual vigilance against the virus in the mistaken belief that vaccines would now solve the problem instead.