Kyeudo
One Thousand Club
What I've gone with on Diagnosis is that the Diagnosis difficulty is what you need to roll while the Disease is still during the Incubation. Once that's over, the full symptoms show up and the Diagnosis difficulty drops by 1. As you say, once the main symptoms roll out, the disease gets easier to diagnose.Kkat said:I like much of what you've done here. I wish I'd had this a month ago when I stuck my players on an island where the Great(ish) Contagion had broken out!
One alterations I would suggest, although it would complicate matters a little, is a "slashed" Diagnosis: Diagnosis (minor symptoms only/major symptoms). For example, while the victim only suffers minor symptoms, the Great(ish) Contagion is exceptionally difficult to diagnose. Once the skin starts to turn green though, it's dead easy.
--Kkat
As for the Great Contagion being easy to diagnose once the green tinge shows, I'm not so sure. First, it's been 700 years since the Great Contagion was commonplace. Only the oldest of Terrestrials, Lunar elders, and the higher ups amoung Sidereals remember the disease, so actuall experience with the disease is rare. Second, Creation is bound to have some odd Wyld-spawned diseases that do all sorts of things, like turn your skin green. That tinge alone won't necessarily mean the disease is the Great Contagion.
Yes, stories exist, so treating for the Great Contagion when you see a green tinge may well be what a healer unable to definatively diagnose such an illness would do, but he won't be entirely sure until the patient dies and the whole body rots in a matter of days. Those that have seen the disease alot before should probably recieve extra dice as a circumstance bonus (along with good material for some stunts).
Think of it like House. House knows about all these different diseases. Each has its own distinctive set of symptoms, but shares some of those symptoms with other diseases. They can't ever be sure which disease (or combination of diseases) that the patient has until they eliminate what it can't be.
Did any of this rambling make sense?