Patient Zero

That unknown mysterious colleague who comes into the office, sneezes every 5 mins, spreads a ton of nasty ass bacteria that eventually has half the office calling in sick the following day.

Matt: Geez Alice, you have been chain sneezing for the last 15 mins, Are you okay?
Alice: So did you last week asshole and now everyone has gotten infected with your shit.
Matt: Yeah Bitch, I'm Patient Zero so don't fuck with me, when you see me, wear a fucking gas mask .
Alice. Off you contagious fuck.