Molecular surveillance of antimicrobial resistance and transmission pattern of Mycobacterium leprae in Chinese leprosy patients.,Emerging Microbes & Infections

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Molecular surveillance of antimicrobial resistance and transmission pattern of Mycobacterium leprae in Chinese leprosy patients.
Emerging Microbes & Infections ( IF 13.2 ) Pub Date : 2019-01-01 , DOI: 10.1080/22221751.2019.1677177
Santosh Chokkakula _{1,

2,

3} , Zhiming Chen _{1,

2,

3} , Le Wang _{1,

2,

3} , Haiqin Jiang _{1,

2,

3} , Yanqing Chen _{1,

2,

3} , Ying Shi _{1,

2,

3} , Wenyue Zhang _{1,

2,

3} , Wei Gao _{1,

2,

3} , Jun Yang ₄ , Jinlan Li ₅ , Xiong Li ₄ , Tiejun Shui ₄ , Jun He ₄ , Limei Shen ₅ , Jie Liu ₅ , De Wang ₅ , Hao Wang ₆ , Huan Chen ₇ , Yanfei Kuang ₇ , Bin Li ₇ , Ziyi Chen ₈ , Aiping Wu ₈ , Meiwen Yu ₁ , Liangbin Yan ₁ , Naveen Chandra Suryadevara ₉ , Varalakshmi Vissa _{1,

2,

3} , Weida Liu ₁ , Hongsheng Wang _{1,

2,

3,

10}

Affiliation

Reports on antimicrobial resistance (AMR) of Mycobacterium leprae, relationship with bacteriological index (BI), and transmission in China are limited. We investigated the emergence of AMR mutations, the relationship between BI and AMR in complete, moderate and lack of BI decline cases, and molecular epidemiological features of AMR cases by enrolling 290 leprosy cases from four endemic provinces. Seven (2.41%), one (0.34%), five (1.72%), one (0.34%), and one (0.34%) strains had single mutations in folP1, rpoC, gyrA, gyrB, and 23S rRNA, respectively. Double mutations in folP1 and gyrA, rpoB and gyrA, and gyrA and 23S rRNA were observed in one (0.34%) strain each. Mutated strains occurred in three out of 81 (95% CI-0.005-0.079, p = 0.083) cases with complete BI decline, in seven out of 103 (95% CI 0.018-0.117, p = 0.008) cases with moderate BI decline, and in four out of 34 (95% CI 0.003-0.231, p = 0.044) cases with lack of BI decline. Most of these mutated strains were geographically separated and diverged genotypically. AMR mutations may not be the main cause of the lack of BI decline. The low transmission of AMR strains at the county level indicates an ongoing transmission at close contact levels.

更新日期：2019-11-01

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