Dr. Daniel Pastula, a neuroinfectious disease physician at UC Health University of Colorado Hospital [and CU School of Medicine associate professor of neurology], said the outdoor element of ski trips is generally safe during a pandemic, but the virus could spread if people congregate in places such as lift lines, lodges, restaurants and bathrooms. “I think you can ski smartly and safely. Again, not completely eliminating the risk, but really reducing it,” he said. Pastula listed now-common safety measures for skiers to follow, among them staying outdoors as much as possible, avoiding crowds and staying home when sick.