FILE - In this March 26, 2020, file photo, people exercise on the trail along Kelly Drive in Philadelphia. For millions of seasonal allergy sufferers, the annual onset of watery eyes and scratchy throats is bumping up against the global spread of a new virus that produces its own constellation of respiratory symptoms. That’s causing angst for people who suffer from hay fever and are now asking themselves whether their symptoms are related to their allergies or the new c…

March 30, 2020