the WHO declared that the epidemic of infections with a previously undescribed human coronavirus, SARS-CoV-2, had spread globally, qualifying as a pandemic.Since then, the world’s countries have cycled through restrictive measures — ranging from physical distancing to full lockdowns — to try to keep the spread of the new coronavirus in check.Throughout this period of anxiety and uncertainty, scientists and members of the public alike have shared one mantra: The pandemic will subside once there is a commonly available vaccine against COVID-19, which is the respiratory disease caused by SARS-CoV-2.Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.At the.