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Journal of Clinical Microbiology, June 1999, p. 2013-2015, Vol. 37, No. 6
Laboratoire de
Bactériologie-Hygiène, Centre National de
Référence pour la Surveillance des Infections à
Mycobactéries et de Leur Résistance aux Antituberculeux,
Groupe Hospitalier Pitié-Salpêtrière, 75651 Paris
Cedex 13, France
Received 11 November 1998/Returned for modification 7 January
1999/Accepted 5 March 1999
We evaluated a new mycobacterial culture system, MB Redox, for
recovery rate and time to detection of mycobacteria from
742 consecutive respiratory specimens and compared the results to those
found with Löwenstein-Jensen (LJ) medium. Twenty specimens (2.7%) were positive for M. tuberculosis: 17 on LJ
medium and 19 in MB Redox, with 16 specimens positive in both media. In
addition, 24 specimens (3.2%) were positive for
nontuberculous mycobacteria (NTM), 20 on LJ medium, 18 in MB Redox,
and 14 in both media. For M. tuberculosis, the mean times to detection were 28.9 days on LJ medium and 23.6 days in MB Redox, and for NTM, the mean times to
detection were 40.6 days on LJ medium and 32.3 days in MB Redox.
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Evaluation of the New MB Redox System for Detection
of Growth of Mycobacteria
*
Corresponding author. Mailing address: Laboratoire de
Bactériologie, Groupe Hospitalier
Pitié-Salpêtrière, 47 Boulevard de
l'Hôpital, 75651 Paris Cedex 13, France. Phone: 33 1 42162071. Fax: 33 1 42162072. E-mail:
bacterio-hyg{at}psl.ap-hop-paris.fr.
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