J Clin Microbiol. 2006 Aug;44(8):2967-9.

Impact of laboratory cross-contamination on molecular epidemiology studies of tuberculosis.

Martínez M, García de Viedma D, Alonso M, Andrés S, Bouza E, Cabezas T, Cabeza I, Reyes A, Sánchez-Yebra W, Rodríguez M, Sánchez MI, Rogado MC, Fernández R, Peñafiel T, Martínez J, Barroso P, Lucerna MA, Diez LF, Gutiérrez C.

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Complejo Hospitalario Torrecárdenas, Almería, Spain.

Abstract

Laboratory cross-contamination by Mycobacterium tuberculosis is known to be responsible for the misdiagnosis of tuberculosis, but its impact on other contexts has not been analyzed. We present the findings of a molecular epidemiology analysis in which the recent transmission events identified by a genotyping reference center were overestimated as a result of unnoticed laboratory cross-contamination in the original diagnostic laboratories.

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PMCID:: PMC1594630

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