[Name] Kepral's Syndrome [Source] Mass Effect 2 [Symptoms] 
Drell are an almost extinct race, as their arid home planet Rakhana underwent an ecological disaster due to overpopulation. 350.000 of them were relocated to the humid, ocean-covered planet of Kajhe; this change of habitat and the unwillingness of the drell to separate themselves from the indigenous population, the jellyfish-like hanar, results in some of them developing this disease, which primarily damages their blood's ability to transfer oxygen. It is noncommunicable, and there is currently no known cure, though leading hanar scientific authorities are working on creating a genetic adaptation.