Comparative pathology of bacterial enteric diseases of swine

R. A. Moxley, G. E. Duhamel

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Enteric bacterial infections are among the most common and economically significant diseases affecting swine production worldwide. Clinical signs of these infections include diarrhea, reduced growth rate, weight loss, and death of preweaned, weanling, grower-finisher, young and adult age breeding animals. The most common etiological agents include Escherichia coli, Clostridium perfringens, Lawsonia intracellularis, Salmonella enterica, and Brachyspira (Serpulina) spp. With the exception of Brachyspira (Serpulina) hyodysenteriae, the cause of swine dysentery, and Lawsonia intracellularis, the cause of proliferative enteropathy, the pathological changes seen with these agents closely resemble the diseases occurring in human beings. Histological changes in the intestines of swine with enteric bacterial infections include bacterial colonization without significant damage (e.g., certain enterotoxigenic E. coli and C. perfringens type A), attaching and effacing lesions with enteropathogenic E. coli and Brachyspira pilosicoli, the cause of colonic spirochetosis, inflammation with S. enterica, and necrotizing and hemorrhagic lesions with certain C. perfringens. Extraintestinal spread of bacteria and/or toxins occurs with some serotypes of E. coli and most serotypes of S. enterica. Enteric bacterial diseases of swine have been used as models to study the pathogenesis of similar diseases of human beings. Several of these pathogens are also important causes of food-borne disease in humans.

Original languageEnglish (US)
Pages (from-to)83-101
Number of pages19
JournalAdvances in experimental medicine and biology
Volume473
StatePublished - Dec 1 2000

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Brachyspira
Swine Diseases
Clostridium perfringens
Salmonella enterica
Lawsonia Bacteria
Pathology
Brachyspira hyodysenteriae
Escherichia coli
Bacterial Infections
Swine
Enterotoxigenic Escherichia coli
Enteropathogenic Escherichia coli
Dysentery
Foodborne Diseases
Intestines
Breeding
Weight Loss
Young Adult
Diarrhea
Clostridium

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Comparative pathology of bacterial enteric diseases of swine. / Moxley, R. A.; Duhamel, G. E.

In: Advances in experimental medicine and biology, Vol. 473, 01.12.2000, p. 83-101.

Research output: Contribution to journalArticle

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