People wait in line to enter a store in Vienna, Austria, on May 9, 2020. Austria has gradually eased its restrictions after a nearly two-month lockdown to fight the coronavirus. So far, all shop have reopened with the measures that keeping a safe distance, wearing masks and so on while shopping. (Photo by Georges Schneider/Xinhua)

People wearing face masks are seen in a store which only allows a maxium of two customers at the same time in Vienna, Austria, on May 9, 2020. Austria has gradually eased its restrictions after a nearly two-month lockdown to fight the coronavirus. So far, all shop have reopened with the measures that keeping a safe distance, wearing masks and so on while shopping. (Photo by Georges Schneider/Xinhua)

People wearing face masks do shopping at a market in Vienna, Austria, on May 9, 2020. Austria has gradually eased its restrictions after a nearly two-month lockdown to fight the coronavirus. So far, all shop have reopened with the measures that keeping a safe distance, wearing masks and so on while shopping. (Photo by Georges Schneider/Xinhua)