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Ei PW, Lee JS, Aung WW, Yeun K, Korma W, Nyunt WW, Swe TL, Htwe MM, Win SM, Aung ST, Chang CL, Lee H. Genotypes and genetic characters of Mycobacterium tuberculosis from Myanmar using three typing methods. Infect Genet Evol 2019; 75:104005. [PMID: 31437559 DOI: 10.1016/j.meegid.2019.104005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/10/2019] [Accepted: 08/12/2019] [Indexed: 11/25/2022]
Abstract
Knowledge on basic characteristics of Mycobacterium tuberculosis (MTB) is helpful to understand the disease epidemiology and support the prediction of clinical outcome of the disease. The aim of this study was to detect the genotypes and genotypic characters of clinical Mycobacterium tuberculosis (MTB) isolates from new and retreatment rifampicin-resistant patients using three different genotyping methods. Mycobacterial interspersed repetitive units-variable number tandem repeat (MIRU-VNTR) typing was used to determine the diversity of 222 clinical isolates. Spoligotyping and IS6110-restriction fragment length polymorphism (RFLP) typing were also used to investigate the genetic characters of 105 MTB strains. Among the 15 genotypes detected by MIRU-VNTR, Beijing strains were the most prevalent of all strains (54.8%); new cases (40.5%) and retreatment cases (69.4%), followed by EAI strain. Spoligotyping categorized the strains into 11 lineages and 13 orphans whereas 96 different IS6110 patterns were identified using RFLP method. The mode number of IS6110 was 18 and 20. Higher band numbers were found in Beijing genotype (p < 0.001). Clustering rates by spoligotyping, MIRU-VNTR and IS6110-RFLP typing were 0.714, 0.004 and 0.085, respectively. Discriminatory powers of spoligotyping, MIRU-VNTR typing and IS6110-RFLP typing were 0.637, 1.000 and 0.997, respectively. Dominant Beijing genotype in both new and retreatment cases denoting that prevailing tuberculosis in Myanmar changed from EAI to Beijing lineage.
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Affiliation(s)
- Phyu Win Ei
- Advanced Molecular Research Centre, Department of Medical Research, 5, Ziwaka Road, Dagon Township, 11191 Yangon, Myanmar; Department of Biomedical Laboratory Science, Collage of Health Sciences, Yonsei University, Wonju Campus, 26493, Republic of Korea
| | - Jong Seok Lee
- Section of Microbiology, International Tuberculosis Research Center, 234 Gaposunhwan-ro, Masanhappo-gu, Changwon-si, Gyeongsangnam-do 51755, Republic of Korea
| | - Wah Wah Aung
- Advanced Molecular Research Centre, Department of Medical Research, 5, Ziwaka Road, Dagon Township, 11191 Yangon, Myanmar
| | - Kim Yeun
- Department of Biomedical Laboratory Science, Collage of Health Sciences, Yonsei University, Wonju Campus, 26493, Republic of Korea
| | - Workneh Korma
- Department of Biomedical Laboratory Science, Collage of Health Sciences, Yonsei University, Wonju Campus, 26493, Republic of Korea; Insititue of Biotechnology, Addis Ababa University, Ethiopia
| | - Wint Wint Nyunt
- National Tuberculosis Program, Department of Public Health, 15011, Myanmar
| | - Thyn Lei Swe
- National Tuberculosis Program, Department of Public Health, 15011, Myanmar
| | - Mi Mi Htwe
- Advanced Molecular Research Centre, Department of Medical Research, 5, Ziwaka Road, Dagon Township, 11191 Yangon, Myanmar
| | - Su Mon Win
- Advanced Molecular Research Centre, Department of Medical Research, 5, Ziwaka Road, Dagon Township, 11191 Yangon, Myanmar
| | - Si Thu Aung
- National Tuberculosis Program, Department of Public Health, 15011, Myanmar
| | - Chulhun L Chang
- Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea.
| | - Hyeyoung Lee
- Department of Biomedical Laboratory Science, Collage of Health Sciences, Yonsei University, Wonju Campus, 26493, Republic of Korea.
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