Document Detail


Synergism between Trichuris suis and the microbial flora of the large intestine causing dysentery in pigs.
MedLine Citation:
PMID:  1167536     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The role of the microbial flora of the large intestine in experimental Trichuris suis infection was studied by comparing the clinical syndrome in conventionally reared (CR) pigs, specific pathogen-free pigs, and gnotobiotic pigs. Thedisease in CR pigs was characterized by a severe mucohemorrhagic enteritis; in contrast, a mild catarrhal enteritis was observed in specific pathogen-free and gnotobiotic pigs. Spirochaetes and vibrio-like organisms were observed only in CR pigs and increased during the clinical phase of the disease. The clinical syndrome was not transmitted by oral administration of intestinal or fecal material from infected CR pigs to CR pigs free of T. suis. Smaller numbers of T. suis produced diarrhea in CR pigs and significantly reduced the growth rates of infected animals; clinical signs and the reduction in growth rate was prevented by incorporating an antibacterial substance (dimetridazole) in the food. Although clinical trichuriasis closely resembles swin dysentery, the two syndromes seem to be distinct. The present results suggest that a microbial component acts synergistically with T. suis to produce the severe clinical syndrome in CR pigs, but identification of the microbial component and the mechanism by which clinical signs are produced await further studies of the bacterial flora of the large intestine of pigs.
Authors:
J M Rutter; R J Beer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Infection and immunity     Volume:  11     ISSN:  0019-9567     ISO Abbreviation:  Infect. Immun.     Publication Date:  1975 Feb 
Date Detail:
Created Date:  1975-05-09     Completed Date:  1975-05-09     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0246127     Medline TA:  Infect Immun     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  395-404     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Bacteria / isolation & purification
Dysentery / transmission,  veterinary*
Enteritis / pathology
Feces / microbiology
Female
Germ-Free Life
Intestine, Large / immunology,  parasitology
Lactobacillus / isolation & purification
Larva
Nitroimidazoles / therapeutic use
Ovum
Parasite Egg Count
Spirochaeta / immunology*,  isolation & purification
Streptococcus / isolation & purification
Swine
Swine Diseases / immunology*
Trichuriasis / drug therapy
Trichuris / immunology*
Vibrio / immunology*,  isolation & purification
Chemical
Reg. No./Substance:
0/Nitroimidazoles
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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