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Clostridium perfringens

What is Clostridium perfringens?

Clostridium perfringens (C. perfringens) is a spore-forming gram-positive bacterium that is found in many environmental sources as well as in the intestines of humans and animals. C. perfringens is commonly found on raw meat and poultry. It prefers to grow in conditions with very little or no oxygen, and under ideal conditions can multiply very rapidly. Some strains of C. perfringens produce a toxin in the intestine that causes illness.

How common is C. perfringens food poisoning?

C. perfringens is one of the most common causes of foodborne illness in the United States. It is estimated that it causes nearly a million cases of foodborne illness each year.

What are the symptoms of C. perfringens food poisoning?

Persons infected with C. perfringens develop diarrhea and abdominal cramps within 6 to 24 hours (typically 8-12). The illness usually begins suddenly and lasts for less than 24 hours. Persons infected with C. perfringens usually do not have fever or vomiting. The illness is not passed from one person to another.

Who is at risk of C. perfringens food poisoning?

Everyone is susceptible to food poisoning from C. perfringens. The very young and elderly are most at risk of C. perfringens infection and can experience more severe symptoms that may last for 1-2 weeks. Complications including dehydration may occur in severe cases.

How is C. perfringens treated?

Oral rehydration or, in severe cases, intravenous fluids and electrolyte replacement can be used to prevent or treat dehydration. Antibiotics are not recommended.

What are common food sources of C. perfringens?

Beef, poultry, gravies, and dried or pre-cooked foods are common sources of C. perfringens infections. C. 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.

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