Rigelian Kassaba fever
Rigellian Kassaba fever was a disease utilized as part of a ruse by  Doctor Leonard McCoy in 2268.

He thus explained the feigned symptoms of Spock in order to help gain control of the  from the invading Kelvans. According to McCoy, patients who suffered from this disease could experience occasional re-occurrences as many as ten years after their initial infection, but it was treatable provided one received the proper two cc dosage of stokaline in time. ()

ja:ライジェル・カッサバ熱
Medical conditions