No one's said it, but it should never be forgotten about when it comes to fungi: air ventilation system. The story about the old man who died from it within 90 days and his entire room was infected to the point they had to rip out the ceiling and shit? Tough shit, it's in the air ventilation system, and it was long gone into someone else's room. Who knows if they even thought of that. "It's spreading so quickly, what do we do?" Check if it's airborne, you quacks, holy shit.