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Kim, Koh, Lee, Lee, Shin, and Lee: Pseudo-outbreak of Brevundimonas diminuta
Original Article

Korean J Clin Microbiol 2011;14(3):115-117.

Published online: 21 September 2011

DOI: https://doi.org/10.5145/KJCM.2011.14.3.115

Pseudo-outbreak of Brevundimonas diminuta

Yong Hyun Kim1, Eun-Mi Koh2, Yong-Wha Lee1, You Kyoung Lee1, Hee Bong Shin1, Kyungwon Lee2

1Department of Laboratory Medicine and Genetics, Soonchunhyang University College of Medicine, Bucheon, Korea

2Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea

Correspondence: Hee Bong Shin, Department of Laboratory Medicine and Genetics, Soonchunhyang University Bucheon Hospital, 1174 Jung-dong, Wonmi-gu, Bucheon 420-767, Korea. (Tel) 82-32-621-5942, (Fax) 82-32-621-5944, (E-mail) shinhb@schmc.ac.kr

Received 20 October 2010       Revised 30 July 2011       Accepted 3 August 2011

Copyright © 2011 Korean Journal of Clinical Microbiology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Brevundimonas diminuta is a lactose non-fermenting Gram-negative rod associated with infection in immunocompromised patients. In three patients from two general wards, B. diminuta was isolated in blood culture sample. The clinical features of the patients did not coincide with the blood culture result, and pseudo-outbreak was suspected. These isolated were biochemically identified as Brevundimonas diminuta, and 16S rRNA sequencing confirmed their identification. The PFGE result showed a single pattern, and their clonality was assumed.

Keywords: Brevundimonas diminuta, Pseudo-outbreak, Pulsed-field gel electrophoresis, 16s rRNA

REFERENCES

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Fig. 1.
Pulsed-field gel electrophoresis (PFGE) patterns of Brevundimonas diminuta isolates.
kjcm-14-115f1.tif
Table 1.
Description of cases
  Case 1 Case 2 Case 2
Age/Sex 17/M 76/M 63/M
Dept./Ward GS/82 MP/112 GS/82
Diagnosis Abscess of buttock Pneumonia Post-Op state of stomach Ca
Initial WBC count (×109/L) 1st: 18.1, 2nd: 19.2 8.8 7.8
Coisolated organism S. anginosus (pus) S. pneumoniae (sputum) -
Body temperature 1st: 38.5°C, 2nd: 37.5°C 37.5°C 37.0°C
Clinical outcome Complete remission Remission Remission
Antibiotics Metronidazole, Netilmicin, Amp/Sulbactam Cefotetan Cefpiran
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