Dataset Information


Genotyping and drug-resistance epidemiology of mycobacterium tuberculosis in Xuzhou, China.

ABSTRACT: BACKGROUND:To explore the genetic diversity and drug resistance status of MTB in Xuzhou, China. METHODS:A total of 325 clinical MTB strains were genotyped by spacer-oligonucleotide typing (spoligotyping) and mycobacterial interspersed repetitive unit variable number of tandem repeats (MIRU-VNTR). Phenotypic resistance was assessed by drug susceptibility testing (DST). RESULT:Based on the spoligotyping method, 325 MTB isolates were classified into 5 known genotypes and 12 unknown genotypes, and the largest branch comprised 268 strains belonging to the Beijing family. Based on the 15-loci VNTR typing method, 325 MTB isolates were divided into 35 clusters and 220 unique patterns. Compared to the low discriminatory power of spoligotyping genotyping (HGDI = 0.3444), 15-loci VNTR genotyping had a significantly higher discriminatory power for all strains (HGDI = 0.9980), particularly for the Beijing family strains (HGDI = 0.9892). When spoligotyping and 15-loci VNTR methods were used together, the discriminatory power increased to 0.9991. The Beijing family strain presented increased risks for developing multi-drug resistance TB (P < 0.05). CONCLUSION:The Beijing family isolates is the most prevalent strains in Xuzhou. Spoligotyping, in combination with 15-loci MIRU-VNTR, is useful for epidemiological analysis of MTB transmission in Xuzhou.

PROVIDER: S-EPMC6965968 | BioStudies |

REPOSITORIES: biostudies

Similar Datasets

| S-EPMC3215657 | BioStudies
| S-EPMC8751994 | BioStudies
| S-EPMC3395628 | BioStudies
| S-EPMC4689458 | BioStudies
| S-EPMC6122615 | BioStudies
| S-EPMC5350424 | BioStudies
2007-01-01 | S-EPMC1988810 | BioStudies
| S-EPMC6884525 | BioStudies
| S-EPMC2628671 | BioStudies
| S-EPMC8253442 | BioStudies