I trudged down the brightly lit hallway, slightly out of breath as I searched for the room I’d remain inside for the next 10 days. It looked just like your average hotel — somewhere you’d stay for a conference or a work trip, back in the days when we had those. Except it was eerily silent, I’d been escorted to the elevator by a masked security guard and I was there because I had COVID-19. As I reached the end of the corridor, I spotted an open door on my right and hustled inside, shutting it behind me as quickly I could. It had been two days since I developed a strange cough, seven...