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Journal of Clinical Microbiology, December 2001, p. 4588-4590, Vol. 39, No. 12
Department of Chemistry, Microbiology and
Immunology1 and Department of Infectious
Diseases,3 Ghent University Hospital, Ghent, and
Department of Microbiology, UZ St. Luc,
Brussels,2 Belgium
Received 30 July 2001/Returned for modification 21 August
2001/Accepted 1 October 2001
Two clinical cases of infection with Ralstonia
mannitolilytica are described: a recurrent meningitis on an
implanted intraventricular catheter and an infected hemoperitoneum as a
complication of a cholangiocarcinoma. The strains were first
misidentified as Pseudomonas fluorescens and
Burkholderia cepacia. Further testing lead to the
identification as Ralstonia pickettii biovar
3/"thomasii," which was recently shown to represent
a separate species, R. mannitolilytica (List editor N. Weiss, Int. J. Syst. Evol. Microbiol. 51:795-796, 2001),
originally described as R. mannitolytica (De Baere et al., Int. J. Syst. Evol. Microbiol. 51:547-558,
2001). R. mannitolilytica can be distinguished
from all described Ralstonia species by its acidification
of D-arabitol and mannitol and by its lack of
nitrate reduction and of alkalinization of tartrate. In order to
determine the true prevalence of infections with this species,
colistin-resistant "P. fluorescens" strains and strains
growing on B. cepacia selective medium deserve further attention.
0095-1137/01/$04.00+0 DOI: 10.1128/JCM.39.12.4588-4590.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
One Case Each of Recurrent Meningitis and
Hemoperitoneum Infection with Ralstonia
mannitolilytica
*
Corresponding author. Mailing address: Laboratory
Bacteriology & Virology, Blok A, Ghent University Hospital, De
Pintelaan 185, B9000 Gent, Belgium. Phone: 32 9 240 36 92. Fax: 32 9 240 36 59. E-mail:
Mario.Vaneechoutte{at}rug.ac.be.
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