It all began with a scratchy throat on Friday, March 13. A colleague had brought the novel coronavirus back with him from the Austrian ski resort . Shortly thereafter, Alexander Riesch, 26, whose name has been changed for this story, also tested positive for the virus."At first I thought, well, at least now you'll have gotten it over with," Riesch says. His doctors also had no doubt: The body of a young, healthy person wouldn't take long to vanquish the virus. They sent Riesch home to recover. But a few days later, he felt so miserable that he had to call an emergency doctor. He spent a...…It all began with a scratchy throat on Friday, March 13. A colleague had brought the novel coronavirus back with him from the Austrian ski resort . Shortly thereafter, Alexander Riesch, 26, whose name has been changed for this story, also tested positive for the virus."At first I thought, well, at least now you'll have gotten it over with," Riesch says. His doctors also had no doubt: The body of a young, healthy person wouldn't take long to vanquish the virus. They sent Riesch home to recover. But a few days later, he felt so miserable that he had to call an emergency doctor. He spent a...WW…