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a bacterial species that is the chief causative agent of gas gangrene in humans and a cause of gas gangrene in other animals, especially sheep; it may also be involved in causing enteritis, appendicitis, and puerperal fever; it is one of the most common causes of food poisoning in the U. S. This organism is found in soil, water, milk, dust, sewage, and the intestinal tract of humans and other animals.
Clos·trid·i·um per·frin·gens(klos-trid'ē-ŭm pĕr-frin'jenz)
Welch,William H., U.S. pathologist, 1850-1934.
Clostridium welchii - Synonym(s): Welch bacillus
Welch bacillus - the chief causative agent of gas gangrene, also one of the most common causes of food poisoning in the U.S. Synonym(s): Clostridium perfringens; Clostridium welchii