Quote from Dr. Cox in My New Old Friend
Mr. Corman: Yeah, well, I read the symptoms on the Internet, OK? I have Yaba. Dr. Cox: Have you been in contact with many exotic primates this year? Mr. Corman: I have been to the zoo, yes. Dr. Cox: And while you were there, did you go ahead and jump right into the cage and play "toss the poop" with the other monkeys? Because if you did, then, yeah, you just might have Yaba. But if that's the case, it would be way, way down on the list of your problems.