lostridium perfringens, or perfringens food poisoning, is one of the most common causes of foodborne illnesses in the United States. The illness is caused by eating foods contaminated with clostridium perfringens bacteria. Beef, poultry, gravies, and dried or pre-cooked foods are common sources of clostridium perfringens infections. Clostridium perfringens infection often occurs when foods are prepared in large quantities and kept warm for a long time before serving. Outbreaks often happen in institutions, such as hospitals, school cafeterias, prisons, and nursing homes, or at events with catered food.