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J Vet Intern Med. 2001 Jul-Aug;15(4):374-8.

The roles of Clostridium difficile and enterotoxigenic Clostridium perfringens in diarrhea in dogs.

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Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Canada.


In this prospective study, feces of dogs with diarrhea were compared with feces of normal dogs for the presence of Clostridium difficile, C difficile toxins A and B, C perfringens, and C perfingens enterotoxin (CPE). C difficile toxins A, B, or both were present in feces of 18 of 87 (21%) dogs with diarrhea and 4 of 55 (7%) normal dogs (P = 0.03), whereas CPE was present in the feces of 24 of 87 (28%) dogs with diarrhea and 3 of 55 (5%) normal dogs (P = 0.01). C difficile was isolated from 2 of 87 (2%) dogs with diarrhea but was not isolated from the feces of 55 normal dogs, possibly because of poor survival of the organism in fecal samples. C perfringens was isolated from the feces of 23 of 24 (96%) CPE-positive dogs with diarrhea, 52 of 63 (83%) CPE-negative dogs with diarrhea, and 39 of 55 (71%) CPE-negative dogs with normal feces. No correlation was found between C perfringens spore number and the presence of CPE.

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