Mycobacterium tuberculosis DNA fingerprint clusters and its relationship with RDRio genotype in Brazil

dc.creatorVinhas, Solange Alves
dc.creatorPalaci, Moisés
dc.creatorMarques, Hebert Silva
dc.creatorAguiar, Paola Poloni Lobo de
dc.creatorRibeiro, Fabíola Karla
dc.creatorPeres, Renata Lyrio
dc.creatorDietze, Reynaldo
dc.creatorGomes, Harrison Magdinier
dc.creatorSuffys, Phillip Noel
dc.creatorGolub, Jonathan E.
dc.creatorRiley, Lee W.
dc.creatorMaciel, Ethel Leonor Noia
dc.date2015-08-19T13:49:35Z
dc.date2015-08-19T13:49:35Z
dc.date2013
dc.date.accessioned2023-09-26T21:39:27Z
dc.date.available2023-09-26T21:39:27Z
dc.identifierVINHAS, Solange Alves; Mycobacterium tuberculosis DNA fingerprint clusters and its relationship with RDRio genotype in Brazil. Tuberculosis (Edinb). v.93, n.2, p.207–212, 2013.
dc.identifier1472-9792
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/11578
dc.identifier10.1016/j.tube.2012.09.001
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8873144
dc.descriptionMycobacterium tuberculosis (Mtb) strains designated as RDRio are responsible for a large cluster of new cases of tuberculosis (TB) in Rio de Janeiro. They were previously shown to be associated with severe manifestations of TB. Here, we used three genotyping methods (IS6110 RFLP, spoligotyping, and multiplex PCR) to characterize RDRio and non-RDRio strains from the metropolitan area of Vitória, State of Espirito Santo in southeast Brazil to determine strain diversity and transmission patterns. Strains with identical IS6110 RFLP patterns were considered to belong to a cluster indicative of recent transmission. Between 2000 and 2010, we identified 5470 new TB patients and genotyped 981 Mtb strains. Of these, 376 (38%) were RDRio. By RFLP, 180 (48%) of 376 RDRio strains and 235 (40%) of 593 non-RDRio strains belonged to RFLP cluster pattern groups (p = 0.023). Simpson’s diversity index based on RFLP patterns was 0.96 for RDRio and 0.98 for non-RDRio strains. Thus, although RDRio strains appear to be comprised of a fewer number of RFLP genotypes, they represent a heterogeneous group. While TB cases caused by RDRio appear more likely to be due to recent transmission than cases caused by non-RDRio strains, the difference is small. These observations suggest that factors other than inherent biological characteristic of RDRio lineages are more important in determining recent transmission, and that public health measures to interrupt new transmissions need to be emphasized for TB control in Vitória.
dc.formatapplication/pdf
dc.languageeng
dc.publisherScienceDirect
dc.rightsopen access
dc.subjectTuberculosis
dc.subjectDNA fingerprinting
dc.subjectMycobacterium tuberculosis
dc.subjectEpidemiologic surveillance
dc.subjectTuberculose
dc.subjectMycobacterium tuberculosis
dc.subjectImpressões Digitais de DNA
dc.subjectVigilância Epidemiológica
dc.titleMycobacterium tuberculosis DNA fingerprint clusters and its relationship with RDRio genotype in Brazil
dc.typeArticle


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