Long COVID patients enduring symptoms, looking for answers
ViewIn the time before COVID-19, Danielle Mortell was biking, hiking, and snowboarding her way through life.
"I was healthy. I was very active. I had climbed to the base camp of Mount Everest in Nepal. I had summited Mount Whitney, the tallest peak in the contiguous U.S.," Mortell said.
The 33-year-old was living in...
