From April 1, 2012, to March 31, 2013, 95 healthcare facilities participated in the surveillance of Clostridium difficile–associated diarrhea (CDAD), for a combined total of 5,233,966 inpatient days. The participating facilities reported 3,797 cases of healthcare-associated (HA) CDAD. The total incidence rate of HA-CDAD was 7.3 cases per 10,000 patient days. This…