Identificación del genotipo Mycobacterium tuberculosis RDRio en el norte de México y su asociación con la resistencia a isoniazida

Translated title of the contribution: RDRio Mycobacterium tuberculosis strains associated with isoniazid resistance in Northern Mexico

Virgilio Bocanegra-García, Luis Jesús Cortez-de-la-Fuente, Yuko Nakamura-López, Gloria María González, Gildardo Rivera, José Prisco Palma-Nicolás

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Background: It has been established that the genomic background of Mycobacterium tuberculosis may influence disease progression, in particular for the Beijing family and the Latin American and Mediterranean (LAM)/RDRio strains. The purpose of this study was to evaluate the prevalence of the LAM/RDRio genotype in cases of tuberculosis from Mexico and their drug susceptibility profile. Methods: Two hundred eighteen M. tuberculosis isolates were screened by 43-spacer spoligotyping. The LAM/RDRio genotype was confirmed by multiplex PCR, and the drug susceptibility testing was carried out in solid Löwenstein-Jensen media. Results: Among the LAM strains identified, 24 (63.1%) were confirmed as M. tuberculosis RDRio. All RDRio strains shared the RD174 deletion, that was associated with isoniazid resistance (p = 0.0264). Conclusions: We documented for the first time the isolation of the LAM/RDRio genotype in pulmonary cases of tuberculosis in Mexico, and we found resistance to the first-line anti-tuberculosis drug isoniazid in these strains.

Translated title of the contributionRDRio Mycobacterium tuberculosis strains associated with isoniazid resistance in Northern Mexico
Original languageSpanish
Pages (from-to)399-402
Number of pages4
JournalEnfermedades Infecciosas y Microbiologia Clinica
Volume39
Issue number8
DOIs
StateAccepted/In press - 2020

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