VIENNA, AUSTRIA - NOVEMBER 22: Police patrols 'Am Graben' shopping street on the first day of a nationwide, temporary lockdown during the fourth wave of the novel coronavirus pandemic on November 22, 2021 in Vienna, Austria. The measure, in which people are only allowed to leave home for essentials and to go to school or work, is meant by authorities to rein in Covid-19 infections that have skyrocketed in recent weeks. The lockdown is currently scheduled to last until December 13. (Photo by Thomas Kronsteiner/Getty Images)