actually had diarrhea on admission (5.2%). Most patients developed diarrhea during the hospitalization, which may have been attributable to other treatments or medications. In the study by Jin et al60 of 651 hospitalized patients, 8.6% of patients had diarrhea on admission before receiving any treatments. The diarrhea symptoms were described as more than 3 loose stools per day. Stool cultures were negative (including Clostridium difficile) in all patients. There was no mention of fecal