Old Age - 80% afflicted in 1 round.

[Sheap]

You can only get afflictions from old age in the "late winter" season. That is why they all happened at the same time.

As for having 80% of your units get afflictions (and bad ones at that), that is worse than normal. Disease seems to be fairly common but AFAIK any affliction can happen. The chances are different from afflictions suffered in battle, where you get lots of chest wounds, limps, etc whereas in old age you get lots of disease and other sort of "wasting afflictions." Does mute prevent the philosophers from researching? Heh.