[Mother Abigail]

This is very odd. Hard to calculate a normal transmission vector from this information...

[pepsionice]

Does everyone notice that one of the folks is a med professor? Kinda makes one wonder what type of projects he was involved in. I bet he was a research type...wanna bet? The rest of these folks are vanella types...but the med guy....he's got a past to him. I bet his lab does unusual type experiments...for the Chinese government. Any bettors out there?

[Domestic Church]

Airborne! Yikes!

[Diddle E. Squat]

What about intentional introduction to that floor, such as coating a doorknob/elevator button/etc.? Is it possible an act like that could occur and infect guests, say applied in the evening, but losing its potency over a short period time, thus explaining why no staff were infected? Similarly perhaps an aerosol release that affected persons who came in contact with its limited time of potency?