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Article

False-positive rifampin resistant results with Xpert MTB/RIF version 4 assay in clinical samples with a low bacterial load.

Diagnostic microbiology and infectious disease - 1 May 2016

Ocheretina Oksana, Byrt Erin, Mabou Marie-Marcelle, Royal-Mardi Gertrude, Merveille Yves-Mary, Rouzier Vanessa, Fitzgerald Daniel W, Pape Jean W

Abstract excerpt

We report investigation of 22 TB cases with positive Xpert MTB/RIF result for resistance to Rifampin and "Very Low" MTB detection level. Twelve cases were false positive without rpoB mutations, 2 were false-positives with a silent mutation in rpoB codon T508, and only 10 were true positives.

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Source

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Identifiers

PMID: 26915638
DOI: 10.1016/j.diagmicrobio.2016.01.009
PMCID: PMC4841693

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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