PIK Professor Ezekiel Emanuel spoke about the risk factors for coronavirus infections: location, density, exposure time, and activity. “If you're outdoors, not in a crowd and not going to be with other people for prolonged periods of time, that's probably good," he said. "Is it a zero-risk scenario? Nothing's zero-risk. Is it a low-risk scenario? Yes."

August 25, 2020 ・ From NBC News