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Pathogenesis of Helicobacter pullorum infections in broilers.

Liesbeth M Ceelen1, Annemie Decostere, Koen Chiers

  • 1Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium. liesbeth.ceelen@ugent.be

International Journal of Food Microbiology
|February 10, 2007
PubMed
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Helicobacter pullorum colonizes broiler chicken ceca and is shed in feces until slaughter. This suggests chicken meat may be a source of human infection.

Area of Science:

  • Veterinary Microbiology
  • Food Safety
  • Bacterial Pathogenesis

Background:

  • Helicobacter pullorum is an emerging foodborne pathogen.
  • Poultry, particularly broiler chickens, are potential reservoirs for H. pullorum.

Purpose of the Study:

  • To investigate the colonization and shedding patterns of Helicobacter pullorum in broiler chickens.
  • To determine the primary site of H. pullorum colonization in chickens.

Main Methods:

  • Broiler chickens were inoculated with different H. pullorum strains.
  • Fecal samples were analyzed weekly using PCR for H. pullorum DNA.
  • Intestinal and liver tissues were examined histologically, immunohistochemically, and bacteriologically.

Main Results:

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  • H. pullorum DNA was detected in feces up to 42 days post-inoculation.
  • The cecum was identified as the main site of colonization.
  • Mild cecal lesions were observed in inoculated birds.

Conclusions:

  • Helicobacter pullorum can colonize broiler chickens and be shed in feces until market age.
  • Chicken meat represents a potential source of H. pullorum infection for humans.