Police check cars and pedestrians at a checkpoint at the entrance to the Village of Key Biscayne, Fla., Monday, March 23, 2020. The village issued an emergency order, banning all travel, starting Monday, within the village by non-residents, with a few exceptions. © Associated Press/Wilfredo Lee »

Aliyah Mosby is silhouetted against the sunset as she walks at the Liberty Memorial Thursday, March 19, 2020, in Kansas City, Mo. Mosby was taking advantage of warm weather on the first day of spring to get some fresh air as most of the community isolates to limit the spread of the coronavirus. © Associated Press/Charlie Riedel »

Lauren and Christoph Herby walk through the forest on their property with their dog, Laika on March 9, 2020. Tubes that carry the sap from the black walnut trees can be seen at left. Tonoloway Farm, a first-generation syrup operation run by Christoph and Lauren Herby in Highland County, is believed to be the only commercial producer of walnut syrup in Virginia. © Heather Rousseau/The Roanoke Times via AP »