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Pedestrians wearing face masks are seen in Berlin, capital of Germany, March 22, 2021. German Chancellor Angela Merkel and the state governments have agreed that an "emergency brake," or the reversing of the relaxations, would be triggered if the incidence rate of reported COVID-19 cases per 100,000 citizens was above 100 in a state or region for three consecutive days. (Photo by Stefan Zeitz/Xinhua)
