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Development of a More Sensitive and Specific Chromogenic Agar Medium for the Detection of Vibrio parahaemolyticus and Other Vibrio Species
Published on: November 8, 2016
VIBRIOS (VIBRIO JEJUNI, N.SP.) ASSOCIATED WITH INTESTINAL DISORDERS OF COWS AND CALVES.
F S Jones1, M Orcutt, R B Little
1Department of Animal Pathology of The Rockefeller Institute for Medical Research, Princeton, N. J.
The Journal of Experimental Medicine
|October 30, 2009
Summary
Researchers identified a new bacterial species, Vibrio jejuni, from calf intestinal disorders. This bacterium causes inflammation in the small intestine when introduced to rabbits.
Area of Science:
- Microbiology
- Veterinary Medicine
- Bacteriology
Background:
- Intestinal disorders in calves can be caused by various bacterial agents.
- Previous studies have identified vibrios in animal gastrointestinal tracts.
- Understanding the causative agents of calf diarrhea is crucial for animal health.
Purpose of the Study:
- To study and classify vibrios isolated from calf intestinal disorders.
- To propose a new species name for a closely allied group of vibrios.
- To investigate the immunological properties and pathogenicity of these vibrios.
Main Methods:
- Morphological, physiological, and tinctorial property analysis of isolated vibrios.
- Agglutination and agglutination absorption tests for immunological classification.
- Experimental infection of rabbits to assess pathogenicity and inflammatory responses.
Main Results:
- A closely allied group of vibrios was identified, sharing morphological and nutritional similarities.
- The proposed name for this group is Vibrio jejuni.
- Immunological analysis revealed two main groups, with further subdivision possible, and experimental infections induced catarrhal inflammation in rabbit small intestines.
Conclusions:
- Vibrio jejuni is proposed as a new species based on consistent characteristics.
- The identified strains show distinct immunological groupings.
- Freshly isolated Vibrio jejuni can cause intestinal inflammation, indicating its pathogenic potential.
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