A notice indicating mask mandatory is seen on the window of a shop in Paris, France, July 20, 2020. The French government's order to make mask-wearing mandatory came into effect on Monday amid signs of worrying acceleration of the virus circulation and growing number of clusters. Any person who refuses to apply to the decree to wear the mask in enclosed public spaces will pay a fine of 135 euros (154.7 U.S. dollars). (Photo by Aurelien Morissard/Xinhua)