People wearing face masks walk past a sign advertising masks in Melbourne on July 20, 2020. Australia's second-biggest city will make it compulsory to wear a mask in public, authorities announced on July 19, as Melbourne steps up efforts to bring a coronavirus outbreak under control. (Photo/Agencies)
People wearing face masks cross the normally busy Burke Street Mall in Melbourne on July 20, 2020. Australia's second-biggest city will make it compulsory to wear a mask in public, authorities announced on July 19, as Melbourne steps up efforts to bring a coronavirus outbreak under control. (Photo by William WEST / AFP)
People wait to buy face masks outsides a pharmacy in Melbourne on July 20, 2020. Australia's second-biggest city will make it compulsory to wear a mask in public, authorities announced on July 19, as Melbourne steps up efforts to bring a coronavirus outbreak under control. (Photo/Agencies)
