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Small colonies of Corynebacterium pseudotuberculosis on blood agar (2 mm in diameter). Cultivation 72 hours, 37°C.
Corynebacterium pseudotuberculosis is phylogenetically closely related to Corynebacterium diphtheriae, may also harbor the diphtheria toxin gene.
C. pseudotuberculosis is positive for urease and the reverse CAMP test (complete inhibition of the effect of Staphylococcus aureus beta-hemolysin on
sheep erythrocytes). It can cause lymphadenitis (occupational), ulcerative lymphangitis and abscess formation.
Murray, P.R. et al.. Manual of Clinical Microbiology: 7th ed., 1999, p.324, 334.
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