Abstract:
:In total, 303 randomly selected clinical Mycobacterium tuberculosis (MTB) isolates from 303 patients (collected January to December 2012) in central Taiwan were examined. The major lineages found were Beijing (N = 114, 37.62%), Haarlem (N = 76, 25.08%) and East African-Indian (EAI) (N = 42, 13.86%). Notably, younger persons (≤30 years old) were 6.58 times more likely to be infected with a Beijing genotype compared to older persons (>70 years) (p < 0.05). Combining molecular typing methods and geographical information system (GIS) analysis, we uncovered a twofold higher incidence of Beijing strains in a hotspot area (33%) compared to non-hotspot areas (17%). By 24 MIRU-VNTR typing, persons in clustered groups were 1.96 times more likely to be infected with a Beijing strain compared with non-clustered persons, suggesting recent spread and emergence of MTB. Finally, we observed a trend in which TB incidence increased as the density/concentration of analyzed environmental factors increased, suggesting that environmental factors are associated with TB transmission; however, only population density was found to be significantly associated with increased risk of TB (p < 0.05). Molecular typing methods combined with spatial analysis suggest possible TB transmission. Early intervention to interrupt transmission may be most effective if targeted to hot zones of TB.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Chen YY,Chang JR,Wu CD,Yeh YP,Yang SJ,Hsu CH,Lin MC,Tsai CF,Lin MS,Su IJ,Dou HYdoi
10.1038/s41598-017-05674-6subject
Has Abstractpub_date
2017-07-14 00:00:00pages
5394issue
1issn
2045-2322pii
10.1038/s41598-017-05674-6journal_volume
7pub_type
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pub_type: 临床试验,杂志文章
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