Tissue samples from the feet of slaughtered cattle exhibiting different stages of digital dermatitis were sectioned and stained with haematoxylin and eosin and silver staining techniques. Three morphological variations of spirochaetes were observed, whereas control samples from feet which were macroscopically negative for digital dermatitis were also negative for spirochaetes. In an immunofluorescence test, [i]Campylobacter faecalis[/i] was found to be abundant on superficial wound smears from the classical ulceration of digital dermatitis.
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