Corynebacterium bovis -friend or foe?

摘要

Corynebacterium species are aerobic, asporogenous, non-partially-acid fast, irregularly shaped, Cram positive rods, which often demonstrate a characteristic 'club' shape, C. bovis is almost exclusively isolated from bovine sources, primarily the mammary gland, although it has been reported in other locations. It belongs to a genus sub-grouping (composed of 10 species) whose principal characteristic is that their growth in vitro is enhanced by the addition of lipid to growth media. These species are referred to as 'lipophilic'. The primary site of C. bovis infection within the bovine mammary gland is thought to be the teat canal. Numbers of organisms appear to fall rapidly above and around Furstenberg's rosette, although infection can exist in the teat cistern and udder tissues.