1. Phylogeographic Analysis of Mycobacterium kansasii Isolates from Patients with M. kansasii Lung Disease in Industrialized City, Taiwan.
- Author
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Tobias Cudahy PG, Liu PC, Warren JL, Sobkowiak B, Yang C, Ioerger TR, Wu CY, Lu PL, Wang JY, Chang HH, Huang HL, Cohen T, and Lin HH
- Subjects
- Humans, Taiwan epidemiology, Aged, Male, Female, Middle Aged, Lung Diseases microbiology, Lung Diseases epidemiology, Phylogeny, Retrospective Studies, Aged, 80 and over, Risk Factors, Whole Genome Sequencing, Mycobacterium kansasii genetics, Mycobacterium kansasii isolation & purification, Mycobacterium Infections, Nontuberculous microbiology, Mycobacterium Infections, Nontuberculous epidemiology, Phylogeography
- Abstract
Little is known about environmental transmission of Mycobacterium kansasii. We retrospectively investigated potential environmental acquisition, primarily water sources, of M. kansasii among 216 patients with pulmonary disease from an industrial city in Taiwan during 2015-2017. We analyzed sputum mycobacterial cultures using whole-genome sequencing and used hierarchical Bayesian spatial network methods to evaluate risk factors for genetic relatedness of M. kansasii strains. The mean age of participants was 67 years; 24.1% had previously had tuberculosis. We found that persons from districts served by 2 water purification plants were at higher risk of being infected with genetically related M. kansasii isolates. The adjusted odds ratios were 1.81 (1.25-2.60) for the Weng Park plant and 1.39 (1.12-1.71) for the Fongshan plant. Those findings unveiled the association between water purification plants and M. kansasii pulmonary disease, highlighting the need for further environmental investigations to evaluate the risk for M. kansasii transmission.
- Published
- 2024
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