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Pseudo-Outbreak of Multidrug-Resistant Mycobacterium tuberculosis Associated With Presumed Laboratory Processing Contamination

Published online by Cambridge University Press:  02 January 2015

Gonzalo Bearman
Affiliation:
Department of Medicine, New York Presbyterian Hospital, Memorial Sloan-Kettering Cancer Center, New York, New York
Carlos Vaamonde
Affiliation:
Department of Medicine, New York Presbyterian Hospital, Memorial Sloan-Kettering Cancer Center, New York, New York
Davise Larone
Affiliation:
Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York
Lewis Drusin
Affiliation:
Department of Medicine, New York Presbyterian Hospital, Memorial Sloan-Kettering Cancer Center, New York, New York
Gianna Zuccotti*
Affiliation:
Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, New York
*
Division of Infectious Disease, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, Box 420, New York, NY 10021

Abstract

An investigation prompted by six positive cultures for multidrug-resistant Mycobacterium tuberculosis during a 7-week period found that an unusual resistance pattern, temporal proximity of laboratory processing, and identical DNA fingerprints supported the theory of cross-contamination. Laboratory processing procedures included specimen batching and multi-use vials of buffer solution. Processing procedures were changed and no additional cases of suspected cross-contamination have been observed. '(Infect Control Hosp Epidemiol 2002;23:622).

Type
Concise Communications
Copyright
Copyright © The Society for Healthcare Epidemiology of America 2002

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