The reported incidence of Campylobacter spp in dogs with or without diarrhoea varies considerably, and many dogs are asymptomatic carriers. Thus the significance of Campylobacter spp as a cause of gastrointestinal disease not clear. The severity of disease is probably dependent upon the number of organisms present, their ability to produce various toxins, previous exposure to Campylobacter spp, the presence of other enteric pathogens and the development of protective antibody. In general campylobacteriosis causes disease, and experimental infections are usually less severe than field infections suggesting that other factors or organisms may play a role in its pathogenesis.

Pathological findings of campylobacteriosis


Fluid colonic contents and thickening, congestion and oedema of mucosa.


Decrease in enterocyte height and numbers of goblet cells, and hyperplasia of epithelial glands. Villus height may be reduced. Subepithelial congestion, haemorrhage and inflammation may be evident.

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