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Implication of the RDRio Mycobacterium tuberculosis sublineage in multidrug resistant tuberculosis in Portugal

dc.contributor.authorDavid, Susana
dc.contributor.authorDuarte, Elsa L.
dc.contributor.authorLeite, Clarice Queico Fugimura
dc.contributor.authorRibeiro, João-Nuno
dc.contributor.authorMaio, José-Nuno
dc.contributor.authorPaixão, Eleonora
dc.contributor.authorPortugal, Clara
dc.contributor.authorSancho, Luísa
dc.contributor.authorGermano de Sousa, José
dc.date.accessioned2012-10-25T11:37:59Z
dc.date.available2012-10-25T11:37:59Z
dc.date.issued2012-05-05
dc.description.abstractMultidrug and extensively drug resistant Mycobacterium tuberculosis are a threat to tuberculosis control programs. Genotyping methods, such as spoligotyping and MIRU–VNTR typing (Mycobacterial Interspersed Repetitive Units), are useful in monitoring potentially epidemic strains and estimating strain phylogenetic lineages and/or genotypic families. M. tuberculosis Latin American Mediterranean (LAM) family is a major worldwide contributor to tuberculosis (TB). LAM specific molecular markers, Ag85C103 single nucleotide polymorphism (SNP) and RDRio long-sequence polymorphism (LSP), were used to characterize spoligotype signatures from 859 patient isolates from Portugal. LAM strains were found responsible for 57.7% of all tuberculosis cases. Strains with the RDRio deletion (referred to as RDRio) were estimated to represent 1/3 of all the strains and over 60% of the multidrug resistant (MDR) strains. The major spoligotype signature SIT20 belonging to the LAM1 RDRio sublineage, represented close to 1/5th of all the strains, over 20% of which were MDR. Analysis of published datasets according to stipulated 12 loci MIRU–VNTR RDRio signatures revealed that 96.3% (129/134) of MDR and extensively drug resistant (XDR) clusters were RDRio. This is the first report associating the LAM RDRio sublineage with MDR. These results are an important contribution to the monitoring of these strains with heightened transmission for future endeavors to arrest MDR–TB and XDR–TB.por
dc.description.sponsorshipLuso-American Development Foundationpor
dc.identifier.citationInfect Genet Evol. 2012 Oct;12(7):1362-7.Epub 2012 May 5por
dc.identifier.issn1567-1348
dc.identifier.otherdoi: 10.1016/j.meegid.2012.04.021
dc.identifier.urihttp://hdl.handle.net/10400.18/1072
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationLACR Award programpor
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S1567134812001670por
dc.subjectMycobacterium Tuberculosispor
dc.subjectMultidrug Resistant Tuberculosis (MDR–TB)por
dc.subjectLatin American Mediterranean Familypor
dc.subjectSpoligotypingpor
dc.subjectRDRio Sublineagepor
dc.subjectResistência aos Antimicrobianospor
dc.titleImplication of the RDRio Mycobacterium tuberculosis sublineage in multidrug resistant tuberculosis in Portugalpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1367por
oaire.citation.startPage1362por
oaire.citation.titleInfection, Genetics and Evolutionpor
oaire.citation.volume12por
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor

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