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Journal of Clinical Microbiology, July 2002, p. 2693-2695, Vol. 40, No. 7
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.7.2693-2695.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

CASE REPORT

Bacteremia Due to Moraxella atlantae in a Cancer Patient

Thierry De Baere,1* An Muylaert,1 Els Everaert,2 Georges Wauters,3 Geert Claeys,1 Gerda Verschraegen,1 and Mario Vaneechoutte1

Department of Microbiology,1 Department of Oncology, Ghent University Hospital, Ghent,2 Microbiology Unit, University of Louvain, Brussels, Belgium3

Received 19 November 2001/ Returned for modification 21 January 2002/ Accepted 19 April 2002

ABSTRACT

A gram-negative alkaline phosphatase- and pyrrolidone peptidase-positive rod-shaped bacterium (CCUG 45702) was isolated from two aerobic blood cultures from a female cancer patient. No identification could be reached using phenotypic techniques. Amplification of the tRNA intergenic spacers revealed fragments with lengths of 116, 133, and 270 bp, but no such pattern was present in our reference library. Sequencing of the 16S rRNA gene revealed its identity as Moraxella atlantae, a species isolated only rarely and published only once as causing infection. In retrospect, the phenotypic characteristics fit the identification as M. atlantae (formerly known as CDC group M-3). Comparative 16S rRNA sequence analysis indicates that M. atlantae, M. lincolnii, and M. osloensis might constitute three separate genera within the Moraxellaceae. After treatment with amoxicillin-clavulanic acid for 2 days, fever subsided and the patient was dismissed.

* Corresponding author. Mailing address: Laboratory Bacteriology & Virology, Blok A, Ghent University Hospital, De Pintelaan 185, B9000 Ghent, Belgium. Phone: 32 9 240 36 43. Fax: 32 9 240 36 59. E-mail: Thierry.DeBaere{at}rug.ac.be.

Journal of Clinical Microbiology, July 2002, p. 2693-2695, Vol. 40, No. 7
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.7.2693-2695.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.





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