Exotic diseases are the curse of foreign travel. The Associated Press has an article spelling out all of the glorious ways one can become ill overseas.

A Minnesota town is the namesake of Brainerd diarrhea, first identified there in 1984. Dr. Robert Tauxe, head of foodborne illness at the CDC, calls it “diarrhea for life.” It sickened 200 people on successive voyages on a small boat around the Galapagos Islands in 1992. A 1998 report on the outbreak found many still suffering from it.

“We’ve studied it extensively, but to this day we don’t know the cause of this yet. We don’t know if it’s a virus or bacteria or what,” Tauxe said.