You prevented a catastrophic epidemic

But there's one room that wasn't contaminated - the entrance.This means that you can leave it once without pulling the switch and return there when you've destroyed either of these two rooms.The corner room may have been contaminated from the airlock opening, but that's okay because you can destroy the entrance after your second visit.That return trip gives you four options for a successful route,and a similar set of options if you destroyed this room first.Congratulations. You've prevented an epidemic of apocalyptic proportions,but after such a stressful episode,you need a break.Maybe you should take up that recent job offer to become a traveling salesman.