As I sat here thinking I should get back in bed, and not post, I wondered how many DMs actually use mundane sicknesses in there campaign? I can't recall if there is a chart in the AD&D 1E for mundane illnesses? Would it even be a good idea? Sorry, you're at a ( insert appropriate modifier )
Then again in a fantasy campaign you have certain resources that will nip most diseases in the bud. I can imagine that the Cure Disease spell, or a lesser form of it, was created for these situations. Cold and flu, etc. being more common than mummy rot. Then there are always herbal cures.
Anyway, enough for now. Back to bed for me. I think my OTC pain medicine is kicking in. No dungeon delving, errr... dungeon creating for me tonight.
Ooooooo... space monkeys.