Imagine you are one of the crew members of the nuclear-powered fast-attack submarine USS Connecticut, 1000 meters under the floating ice of the Arctic Ocean. Your three-month secret mission is only in its third week. Suddenly, the sailor above your bunk starts coughing, the neighbor signals he has a fever, and the onboard medical officer alerts his commanding officer that 55 of the 116 crew are showing advanced symptoms of COVID-19. There is no nearby human settlement to go to, just ...