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a bacterial species that occurs in naturally soured milk, in naturally fermented starchy plant substances, and in soil; formerly considered nonpathogenic, it is now known to include neurotoxin-producing strains; the type species of the genus Clostridium.
A species in which some strains produce a neurotoxin that causes botulism.
See also: Clostridium
a genus of anaerobic spore-forming bacteria of the family Bacillaceae. Most are gram-positive rods.
Clostridium bifermentans, Clostridium sordelli
see malignant edema.
causes botulism from neurotoxin produced during vegetative growth. C. botulinum types B, C and D are associated with disease in animals but the type prevalence varies geographically. See botulism.
involved in the spoilage of meat.
may be associated with colitis X in horses.
formerly called C. feseri. See blackleg.
cause of ulcerative enteritis and liver necrosis in quail, turkeys, grouse, partridge and chickens. Not an accredited species.
see antibiotic-associated colitis.
now called C. chauvoei (above).
formerly called C. novyi type D. See bacillary hemoglobinuria.
a species found in feces, soil and sometimes wound infections. An important cause of meat spoilage.
a thermophilic spoiler of canned meat producing hydrogen sulfide gas and causing purple staining of the inside of the can. Now called Desulfotomaculum nigrificans.
see bacterial overgrowth.
a proteolytic subgroup of C. botulinum; not a valid species.
causes deep bone taint in hams. See also C. putrificum (below).
a cause of bone taint in cured hams. There is no detectable abnormality on the surface of the ham.
cause of a small proportion of cases of gas gangrene in ruminants. See also abomasitis.
associated with enteritis and enterocolitis in rabbits, guinea pigs and foals.
an apathogenic clostridium often found in lesions of gas gangrene.
a common inhabitant of soil and human and horse intestines, and the cause of tetanus in humans and domestic animals.
found in fight abscesses and pleurisy in cats.
see C. perfringens (above).