So when a disease takes 2 consecutive saves, f.e. Red Ache; if you pass the first save do you still take that day's damage?
I could see it either way since you still have the disease (thus take damage) or that you don't (because you're fortitude is such that you didn't actually get hurt by it.)
My guess is that you don't, but I figured I'd verify before this becomes a thing; as I got a lot of Filth Fever and red ache in this campaign.
If you succeed at your saving throw, you usually do not take the effects of the disease--your body effectively fights off the effects for that period.
Save: This gives the type of save necessary to avoid contracting the affliction, as well as the DC of that save. Unless otherwise noted, this is also the save to avoid the affliction's effects once it is contracted, as well as the DC of any caster level checks needed to end the affliction through magic, such as remove curse or neutralize poison.