Clinical manifestations, molecular characteristics, antimicrobial susceptibility patterns and contributions of target gene mutation to fluoroquinolone resistance in Elizabethkingia anopheles

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題名:	Clinical manifestations, molecular characteristics, antimicrobial susceptibility patterns and contributions of target gene mutation to fluoroquinolone resistance in Elizabethkingia anopheles
作者:	Lin, Jiun-Nong;Lai, Chung-Hsu;Yang, Chih-Hui;Huang, Yi-Han;Lin, Hsi-Hsun
日期:	2018-10-12
上傳時間:	2018-10-15T06:55:21Z (UTC)
摘要:	Objectives: Elizabethkingia anophelis has recently emerged as a cause of life-threatening infections in humans. We aimed to investigate the clinical and molecular characteristics of E. anophelis. Methods: A clinical microbiology laboratory database was searched to identify patients with Elizabethkingia infections between 2005 and 2016. Isolates were re-identified and their species were confirmed using 16S rRNA gene sequencing. Patients with E. anophelis infections were included in this study. Clinical information, antimicrobial susceptibility andmutations in DNA gyrase and topoisomerase IV were analysed. Results: A total of 67 patients were identified to have E. anophelis infections, including 47 men and 20 women, with a median age of 61 years. Comorbidity was identified in 85.1% of the patients. Among the 67 E. anophelis isolates, 40 (59.7%) were isolated from blood. The case fatality rate was 28.4%. Inappropriate empirical antimicrobial therapy was an independent risk factor for mortality (adjusted OR"10.01; 95% CI"1.20–83.76; P"0.034). The isolates were ‘not susceptible’ to multiple antibiotics. All the isolates were susceptible to minocycline. Susceptibilities to ciprofloxacin and levofloxacin were 4.5% and 58.2%, respectively. Mutations in DNA gyrase subunit A were identified in 11 isolates that exhibited high-level fluoroquinolone resistance. Conclusions: Minocycline has the potential to be the drug of choice in patients with E. anophelis infections. Additional investigations are needed to determine the optimal antimicrobial agents to treat this life-threatening infection.
顯示於類別:	[生物科技系] 期刊論文

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