Investigation of Laboratory cross-contamination of Mycobacterium tuberculosis cultures.

L. Fitzpatrick, C. Braden, W. Cronin, J. English, E. Campbell, S. Valway, I. Onorato

Research output: Contribution to journalArticlepeer-review

Abstract

Many clinicians and laboratory personnel are unaware that a culture positive for Mycobacterium tuberculosis may represent contamination. Laboratory cross-contamination with the M. tuberculosis laboratory control strain (H37Ra) occurs infrequently and therefore demands heightened awareness and recognition. We report 3 occurrences of laboratory cross-contamination from the same laboratory. These occurrences illustrate the importance of interpreting laboratory results in conjunction with the patient's clinical presentation. Failure to recognize laboratory cross-contamination with M. tuberculosis leads to both erroneous administration of unnecessary medications and expenditure of resources required to conduct contact investigations.

Original languageEnglish (US)
JournalClinical Infectious Diseases
Volume38
Issue number6
StatePublished - 2004
Externally publishedYes

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