Clostridium

Bacteria, Characteristics, & Infection

Oct 6, 2023 - 15:01
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clostridium

clostridium, (genus Clostridium), any of a genus of rod-shaped, usually gram-positive bacteria, members of which are found in soil, water, and the intestinal tracts of humans and other animals. Most species grow only in the complete absence of oxygen. Dormant cells are highly resistant to heat, desiccation, and toxic chemicals and detergents. The species are variable in size. A typical species, Clostridium butyricum, ranges from 0.6 μm across by 3 to 7 μm long.

Several species of Clostridium are important causes of illness in humans and other animals. C. botulinum is the causative agent of botulism, which results from eating improperly sterilized canned foods that have become contaminated with the botulinum toxin or which sometimes occurs as a wound infection. Toxins produced by C. botulinum are the most potent poisons known. The toxin of C. tetani causes tetanus when introduced into damaged or dead tissue. C. perfringens, C. novyi, and C. septicum can cause gangrene in humans. C. perfringens is also a source of foodborne illness, occurring on raw meat and poultry. Other forms of acute clostridial infection commonly occur in livestock and waterfowl.

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