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Journal of Clinical Microbiology, December 2000, p. 4640-4642, Vol. 38, No. 12
Department of Medical
Microbiology1 and Department of
Intensive Care,2 Academic Medical Center,
University of Amsterdam, Amsterdam, The Netherlands
Received 10 July 2000/Returned for modification 6 August
2000/Accepted 13 September 2000
In two patients with prosthetic valve endocarditis due to
Peptostreptococcus magnus, blood cultures in the BacT/Alert
and BACTEC 9240 systems were signal negative. The capability of the BacT/Alert system to detect various Peptostreptococcus
species was assessed. P. magnus and P. anaerobius could not be detected, and subcultures remained
negative. The growth in conventional media of these two species and
other Peptostreptococcus species was similar.
0095-1137/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
Apparent Culture-Negative Prosthetic Valve
Endocarditis Caused by Peptostreptococcus magnus
*
Corresponding author. Mailing address: Laboratory
of Public Health, P.O. Box 30039, 9700 RM Groningen, The
Netherlands. Phone: 31 (0) 50-521-5100. Fax: 31 (0) 50-527-1488. E-mail: ervandervorm{at}hotmail.com.
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