Beneficial Pathogen Symptom Idea Dump

[Podrick Equus]

all fun and games until a disease-immune antagonist like vampire or changeling starts spreading this around

Okay, so instead of shooting the vampire at point blank range (on harm intent), you'll instead bash them with your gun (on help intent). And you'll still hit them with your fire extinguisher or other melee weapon on help intent.

Really, the only scenario where I can see this coming up is if you're trying to kill the vampire/changeling with your bare hands, which is easily counteracted by picking up almost any object in the game.