ArticleBMC infectious diseases2017
Genetic diversity of Mycobacterium tuberculosis isolates from Tochigi prefecture, a local region of Japan.
Article in BMC infectious diseases, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Reporting practices for genomic epidemiology of tuberculosis: a systematic review of the literature using STROME-ID guidelines as a benchmark.The Lancet. Microbe · 2021Pooled it
- Connection between two historical tuberculosis outbreak sites in Japan, Honshu, by a newEpidemiology and infection · 2022Article
- Article
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7 authors.
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Abstract
backgroundForeign-born patients with tuberculosis (TB) may introduce globally disseminated isolates of Mycobacterium tuberculosis into large cities in Japan. The risk of dissemination of these isolates into local regions, however, has not been determined. This study analyzed the molecular epidemiology of M. tuberculosis isolates obtained from TB patients living in a local region of Japan.
methodsWhole genome sequences of 169 M. tuberculosis isolates, obtained from 148 Japanese-born and 21 foreign-born patients living in Tochigi, Japan, were analyzed using the Comprehensive analysis server for the Mycobacterium t u b erculosis complex (CASTB).
resultsThe 169 isolates were clustered into four clades; Lineage 2 (111 isolates 65.7%), Lineage 4 (43 isolates, 25.4%), Lineage 1 (13 isolates, 7.7%), and Lineage 3 (2 isolates, 1.2%). Of the 111 isolates belonging to Lineage 2, 79 (71.2%) were of the atypical Beijing sub-genotype. Of the 13 Lineage 1 isolates, nine (69.2%) were from foreign-born patients. The isolates belonging to Lineage 4 were further clustered into three clades, two containing isolates shared by both Japanese- and foreign-born patients. The two isolates belonging to Lineage 3 were obtained from foreign-born patients.
conclusionsThe genotypic diversity of M. tuberculosis in a local region of Japan is increased primarily by the presence of isolates obtained from foreign-born patients.
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