Studies on Campylobacter sputorum subspecies Mucosalis

Area of Science:

• Veterinary Microbiology
• Gastroenterology
• Bacteriology

Background:

• Catalase-negative vibrios are prevalent in the intestinal mucosa of pigs with enteropathies.
• These vibrios exhibit an adenomatous component in the affected mucosa.
• Morphological similarities suggest a common origin for these porcine enteropathies.

Purpose of the Study:

• To investigate the characteristics of catalase-negative vibrios isolated from porcine enteropathies.
• To compare these vibrios with Campylobacter sputorum subsp. mucosalis.
• To explore antigenic relationships for bacterial differentiation.

Main Methods:

• Isolation and characterization of catalase-negative vibrios from affected pig intestines, mouth, and faeces.
• Comparison with Campylobacter sputorum subsp. mucosalis strains.
• Antigenic analysis of isolated vibrio strains.

Main Results:

• Catalase-negative vibrios isolated from porcine enteropathies are morphologically indistinguishable from Campylobacter sputorum subsp. mucosalis.
• Some isolates conform to the mucosalis subspecies criteria, while others differ.
• Antigenic analysis reveals close relationships within the mucosalis subspecies, with potential for strain separation.

Conclusions:

• The findings support a common origin for porcine enteropathies characterized by adenomatous mucosal changes and the presence of specific vibrios.
• Catalase-negative vibrios represent a significant factor in porcine enteropathies.
• Antigenic profiling offers a method for distinguishing between related vibrio strains.