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Journal of Clinical Microbiology, December 2009, p. 4185-4186, Vol. 47, No. 12
0095-1137/09/$08.00+0     doi:10.1128/JCM.00957-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

CASE REPORT

Infective Endocarditis Due to Citrobacter koseri in an Immunocompetent Adult{triangledown}

A. Dzeing-Ella,1 T. A. Szwebel,2 J. Loubinoux,1,3 S. Coignard,1,3 A. Bouvet,1,3 C. Le Jeunne,2,3 and E. Aslangul2,3*

Service de Microbiologie,1 Service de Médecine Interne, Assistance Publique-Hôpitaux de Paris, Hôtel-Dieu 1, place du Parvis Notre-Dame, 75181 Paris Cedex 4, France,2 Université Paris Descartes, rue de l'Ecole de Médecine, 75006 Paris, France3

Received 13 May 2009/ Returned for modification 27 July 2009/ Accepted 27 September 2009

Citrobacter koseri (formerly Citrobacter diversus) is a motile gram-negative bacillus usually arising from urinary and gastrointestinal tracts. C. koseri rarely causes infection in immunocompetent patients and, thus far, has been considered an opportunistic pathogen. We report on a 30-year-old man, with no medical past, hospitalized for infective aortic endocarditis due to C. koseri. Four weeks of antibiotherapy led to a full recovery for this patient. However, this case is unusual, as previous history and 1 year of follow-up showed no features of intercurrent immunosuppression. Microbiological diagnosis was based on using 16S rRNA gene sequencing.

* Corresponding author. Mailing address: Service de Medecine Interne, Assistance Publique-Hopitaux de Paris, Hotel-Dieu 1, place du Parvis Notre-Dame, 75181 Paris Cedex 4, France. Phone: 33 1 42 34 80 84. Fax: 33 1 42 34 85 88. E-mail: elisabeth.aslangul{at}htd.aphp.fr

{triangledown} Published ahead of print on 7 October 2009.

Journal of Clinical Microbiology, December 2009, p. 4185-4186, Vol. 47, No. 12
0095-1137/09/$08.00+0     doi:10.1128/JCM.00957-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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