Well, I don't think they just started calling it that for no reason. The fact that they they now know more means they are marking progress, even if it makes it

Well, I don't think they just started calling it that for no reason. The fact that they they now know more means they are marking progress, even if it makes it harder to declare victory. The way I read it is that they were so far from a cure that they didn't even know what they were trying to achieve.