@Madmole
What plans do you have long-term for infection? I think it has potential to be a linchpin in this game and I imagine you and the other devs have thought the same. Significant progressive debuffs in line with slowly becoming a zombie (less intelligent, less agility, less perception, but perhaps more fortitude and strength), cool signs that you're "turning" like an increasing frequency of moans and zombie grunts, maybe an animation like when you first spawn in the world and look at your hands but this time they're starting to decay, if you don't cure yourself in time you die and watch an animation of your character writhing on the ground, fully turning, and then standing up to shuffle away as a new member of the undead.
Some of the above? All the above? More that I haven't even thought of? PLEASE tell me infection won't just be a simple debuff but y'all want to create some visceral pressure that the character is really turning into a zombie and antibiotics need to be found & used ASAP!