I was in the Peace Corps. I drank fermented horse milk like everyone else was doing. By three in the morning my stomach had swollen up so bad it was bulging out like a pregnant lady. It finally started coming out both ends, but as I was running to the outhouse in the pitch black i tripped on something. Some stray dogs came and ate the vomit and licked my face while I rolled on the ground. Good thing I had already finished the rabies vaccine the week before!
I never got worms, but I got dysentary and giardia about ten times.