Talk to Frede in el_dicastes (dicastes01 117 262), who isn't feeling well. You are warped to a the Sapha residences.
Talk to Frede, who mentions he's feeling better after getting a shot of Bradium. You mention you're feeling faint, and he gives you a Banana. Your HP drops by 90%. Frede says his leg won't ever recover, and says the Sapha have been hit with an epidemic. He mentions some of his friends, who are now “still”. He asks you to visit his friends who work in the caves outside town, as they must report back soon for their shots.