Salmonella enterica Serovar Infantis KPC-2 Producer: First Isolate Reported in Ecuador.

IF 2.3 4区 医学 Q3 INFECTIOUS DISEASES Microbial drug resistance Pub Date : 2024-12-01 Epub Date: 2024-10-22 DOI:10.1089/mdr.2024.0072
Fernando Villavicencio, Viviana Albán, Carolina Satán, Hidaleisy Quintana, Wladimir Enríquez, Katherine Jaramillo, Francisco Flores, Lino Arisqueta
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Abstract

Antimicrobial resistance is currently considered a public health threat. Carbapenems are antimicrobials for hospital use, and Enterobacterales resistant to these β-lactams have spread alarmingly in recent years, especially those that cause health care-associated infections. The blaKPC gene is considered one of the most important genetic determinants disseminated by plasmids, promoting horizontal gene transfer. This study describes, for the first time in Ecuador, and worldwide, the presence of a blaKPC-2 gene in an isolate of Salmonella enterica serovar Infantis from a clinical sample. Through whole-genome sequencing, we characterized the genetic determinants of antimicrobial resistance in this Salmonella ST-32 strain. Our results showed the presence of several resistance genes, including blaCTX-M-65, and a conjugative plasmid Kpn-WC17-007-03 that may be responsible for the horizontal transference of these resistance mechanisms.

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婴儿肠沙门氏菌血清型KPC-2生产者:厄瓜多尔首次报道分离株。
抗菌素耐药性目前被认为是一种公共卫生威胁。碳青霉烯类是医院使用的抗菌剂,近年来,对这些β-内酰胺类耐药的肠杆菌的传播令人震惊,尤其是那些引起卫生保健相关感染的肠杆菌。blaKPC基因被认为是最重要的遗传决定因素之一,通过质粒传播,促进水平基因转移。这项研究首次在厄瓜多尔和全世界范围内描述了从临床样本中分离出的肠炎沙门氏菌血清型婴儿中存在blaKPC-2基因。通过全基因组测序,我们鉴定了沙门氏菌ST-32菌株抗微生物药物耐药性的遗传决定因素。我们的研究结果表明,包括blaCTX-M-65在内的几个抗性基因和一个共轭质粒Kpn-WC17-007-03可能负责这些抗性机制的水平转移。
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来源期刊
Microbial drug resistance
Microbial drug resistance 医学-传染病学
CiteScore
6.00
自引率
3.80%
发文量
118
审稿时长
6-12 weeks
期刊介绍: Microbial Drug Resistance (MDR) is an international, peer-reviewed journal that covers the global spread and threat of multi-drug resistant clones of major pathogens that are widely documented in hospitals and the scientific community. The Journal addresses the serious challenges of trying to decipher the molecular mechanisms of drug resistance. MDR provides a multidisciplinary forum for peer-reviewed original publications as well as topical reviews and special reports. MDR coverage includes: Molecular biology of resistance mechanisms Virulence genes and disease Molecular epidemiology Drug design Infection control.
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