Journal of clinical microbiology
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J. Clin. Microbiol. · Feb 1989
Capnocytophaga canimorsus sp. nov. (formerly CDC group DF-2), a cause of septicemia following dog bite, and C. cynodegmi sp. nov., a cause of localized wound infection following dog bite.
CDC group DF-2 is the vernacular name given to a slow-growing gram-negative bacterium that causes septicemia and meningitis in humans. Infections frequently (one-third of cases) occur following dog bites or close contact with dogs or occasionally with cats. Splenectomy and alcoholism appear to be strong predisposing factors for DF-2 infection. ⋯ Both groups are phenotypically and genetically distinct from Capnocytophaga species, although they do share several characteristics with Capnocytophaga species, including cellular morphology, gliding motility, cellular fatty acid composition, enhancement of growth in a candle jar atmosphere, and G+C content. The new species differ from Capnocytophaga species by their positive oxidase and catalase reactions. We chose to avoid creating a new genus and proposed the names Capnocytophaga canimorsus sp. nov. for group DF-2 and C. cynodegmi sp. nov. for the DF-2-like strains.