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Distribution of acquired antibiotic resistance genes among Enterococcus spp. isolated from a hospital in Baotou, China.


ABSTRACT:

Objective

This study investigated the distribution of acquired antibiotic resistance genes in Enterococcus species isolated from clinical patients in Baotou, China.

Result

A total of 73 enterococca lisolates from clinical samples were collected from December 2016 to September 2017. Of the 73 enterococcal isolates, 36 (49.3%), 35 (47.9%), 1 (1.4%), and 1 (1.4%) were identified as E. faecium, E. faecalis, E. gallinarum, and E. raffinosus, respectively. The resistance rates of the enterococci to nitrofurantoin, tetracycline, gentamicin (high-level), ampicillin, ciprofloxacin and erythromycin were 24.7%, 49.3%, 50.7%, 54.8%, 74.0% and 89.0%, respectively. The most prevalent aminoglycoside resistance genes were aac(6')-Ie-aph(2?)-Ia (64.9%) and aph(3')IIIa (64.9%). The most common erythromycin ribosome methylation gene was erm(B) (67.7%), followed by erm(A) (4.6%) and erm(C) (1.5%). The tetracycline resistance gene tetM was found to be present in 100.0% of the tetracycline-resistant strains of enterococci. Thus, E. faecium and E. faecalis were identified as the species of greatest clinical importance associated with hospital-acquired enterococcal infections in Baotou, China. The antimicrobial resistance genes aac(6')-Ie-aph(2?)-Ia, aph(3')IIIa, tetM, and erm(B) were significantly more prevalent among the enterococcal isolates. Therefore, action should be taken to monitor drug resistance and antimicrobial resistance genes to manage multi-drug-resistant enterococcal infections.

SUBMITTER: Tian Y 

PROVIDER: S-EPMC6334421 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Publications

Distribution of acquired antibiotic resistance genes among Enterococcus spp. isolated from a hospital in Baotou, China.

Tian Yingjie Y   Yu Hui H   Wang Zhanli Z  

BMC research notes 20190115 1


<h4>Objective</h4>This study investigated the distribution of acquired antibiotic resistance genes in Enterococcus species isolated from clinical patients in Baotou, China.<h4>Result</h4>A total of 73 enterococca lisolates from clinical samples were collected from December 2016 to September 2017. Of the 73 enterococcal isolates, 36 (49.3%), 35 (47.9%), 1 (1.4%), and 1 (1.4%) were identified as E. faecium, E. faecalis, E. gallinarum, and E. raffinosus, respectively. The resistance rates of the en  ...[more]

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