Antibiotic resistance and genomic characterization of Mycobacterium abscessus complex isolates from patients with pulmonary tuberculosis in Iran: A multi-center study (2010-2021)

被引：0
作者：
Hashemzadeh, Mohammad [1 ,2 ]
Dezfuli, Aram Asareh Zadegan [2 ]
Khosravi, Azardokht [1 ,2 ]
Khosravi, Nazanin Ahmad [2 ]
Saki, Morteza [2 ]
机构：
[1] Ahvaz Jundishapur Univ Med Sci, Hlth Res Inst, Infect & Trop Dis Res Ctr, Ahvaz, Iran
[2] Ahvaz Jundishapur Univ Med Sci, Fac Med, Dept Microbiol, Ahvaz, Iran
来源：
ACTA MICROBIOLOGICA ET IMMUNOLOGICA HUNGARICA | 2024年 / 71卷 / 01期
关键词：
non -tuberculous mycobacteria; Mycobacterium abscessus; clarithromycin; MLST; INFECTIONS;
D O I：
10.1556/030.2024.02169
中图分类号：
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号：
100102 ;
摘要：
One hundred and eighteen sputum specimens suspected of Mycobacterium abscessus infection were collected. Species level identification of M. abscessus was performed by rpoB sequencing. Clonality analysis was done by multilocus sequence typing (MLST) for M. abscessus. Antibiotic susceptibility testing was performed for clarithromycin, amikacin, ciprofloxacin and moxifloxacin. Altogether 128 isolates were obtained and were subjected to rpoB gene sequencing for definite identification. Among them 59 were identified as M. abscessus, and these included 22 (37.28%) isolates of M. abscessus subsp. abscessus, 22 (37.28%) isolates of M. abscessus subsp. massiliense, and 15 (25.42%) isolates of M. abscessus subsp. bolletii. All 59 M. abscessus complex isolates were analyzed by MLST in this study. Certain sequence types (STs) were identified among the 59 isolates and were specific for each subspecies. Two STs (ST40 and ST33) were specific to M. abscessus subsp. abscessus, one ST (ST20) was specific to M. abscessus subsp. bolletii, and one ST (ST15) was specific to M. abscessus subsp. massiliense. In antibiotic resistance, clarithromycin susceptibility testing of 22 M. abscessus subsp. abscessus strains detected 15 (68.18%) resistant strains, while among 22 M. abscessus subsp. massiliense strains 5 (22.72%) exhibited resistance, and among 15 M. abscessus subsp. bolletii 8 (53.33%) were resistant. Our study revealed a significant level of antibiotic resistance in isolates of the M. abscessus complex.
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页码：82 / 88
页数：7
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