Capnocytophaga canimorsus septicemia associated with cat scratch

A case is reported of Capnocytophaga canimorsus (formerly CDC group DF-2) septicemia following cat scratch in a patient with congenital asplenia. The case is of interest in that (1) the clinical presentation provided no indication as to the cause of the patient's illness. (2) C. canimorsus infection following cat bite or scratch has been reported far less frequently than following dog bite. (3) The clinical course of the illness may have been modified by previous and concurrent warfarin therapy.