An unidentified bug gave most men in our unit a severe case of diarrhea. Richard Waddell lost 20 plus pounds in three days and was admitted to the hospital. They found while trying anything they thought might cure Richard, that Gamma Globulin stopped it cold so we all got shots and were cured. Gamma Globulin was given by a shot in the butt and I had half a golf ball from the shot at the injection site for 30 years until a doctor surgically removed it. The source of the bug was unclean mess hall (the large tent is our mess hall) equipment housed in this tent.