In the very far future as a very minor detail I think it'd be neat to mitigate colds and similar diseases with oral antiseptics not unlike Listerine. This would make a nice mod or something but if that never happens and those cool Lemmy or RJ dudes needs something to toy with to keep a good dev rhythym going or something they could take a crack at it. Before anyone asks, yes I've tried this and yes it works for the most part. It kills instances of the virus in your mouth and slows/stops them from replicating and reaching their carrying capacity thing where they start attacking the body and stuff. Maybe it would slow and/or lessen the progression of diseases in zomboid? Oh and if I'm super-wrong about anything and you can prove it call me out on it please so I can stop. <3