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Journal of Clinical Microbiology, January 2004, p. 290-293, Vol. 42, No. 1
0095-1137/04/$08.00+0 DOI: 10.1128/JCM.42.1.290-293.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
Clinical Research Center, Marshfield Clinic Research Foundation, Marshfield,1 Memorial Medical Center, Neillsville, Wisconsin,2 Meningitis and Special Pathogens Branch, National Centers for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia,3 Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, Colorado4
Received 22 May 2003/ Returned for modification 7 August 2003/ Accepted 14 October 2003
Bergeyella zoohelcum is an uncommon zoonotic pathogen typically associated with cat or dog bites. Previously, only five cases of B. zoohelcum infection have been reported. We report the isolation and characterization of a fastidious Bergeyella species from acute cellulitis in the upper extremity of a 60-year-old woman. The organism was too fastidious for identification and susceptibility testing with traditional culture methods. The isolate was characterized further by PCR amplification and sequencing of the 16S rRNA gene with broad-range eubacterial primers. Phylogenetic analysis of the 16S ribosomal DNA sequence indicated that this isolate was a member of the species B. zoohelcum (previously Weeksella zoohelcum), a gram-negative bacillus that is rarely associated with infections in humans. Despite sharing a close genetic relationship with other B. zoohelcum strains, this isolate was extremely fastidious in nature, raising the possibility that similar strains from cat or dog bite wound infections have been underreported.
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