尼日利亚的Serratia nevei:第一份报告和全球分销
Ayodele Timilehin Adesoji1, Emmanuel Dayo Alabi1, Vittoria Mattioni Marchetti2
1Department of Microbiology, Federal University, Dutsin-Ma 821101, Katsina State, Nigeria.
Microorganisms
|December 31, 2025
概括
从尼日利亚的食品样本中首次隔离了Serratia nevei,这突显了它在食品供应链中的出现. 基因组分析对于准确的Serratia物种识别和了解潜在的动物传播风险至关重要.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 食品安全 食品安全
背景情况:
- 塞拉提亚物种是具有多种环境来源的机会性病原体.
- 使用传统方法,准确识别Serratia物种是具有挑战性的.
- 塞拉提亚在食品供应链中的存在构成潜在的公共卫生风险.
研究的目的:
- 报告尼日利亚从食品样本中首次隔离和鉴定Serratia nevei.
- 调查已识别的S. nevei菌株的抗菌素耐药性和毒性因素.
- 强调全基因组测序的重要性,以精确识别塞拉提亚属内的物种.
主要方法:
- 疫情监测和从尼日利亚市场收集180个食品样本.
- 使用染色和MicroScan autoSCAN-4进行隔离和识别.
- 抗菌敏感性测试和全基因组测序 (WGS) 用于最终识别和基因组分析.
主要成果:
- 菌株F129B被从牛肉样本中分离出来,最初是通过标准方法误认的.
- 世界地质系统证实该分离物是S. nevei,显示出对阿莫西西林/克拉夫兰酸,胆固醇素,阿兹特里和素的耐药性.
- 该基因组中含有对β-乳酸盐,氨基糖化物,菌素,菌素和四环素的耐药性基因,以及毒性因子.
结论:
- 由于表型方法的局限性,精确识别塞拉蒂亚物种需要基因组表征.
- 尼日利亚食品供应链中S. nevei的出现表明动物传播的可能性.
- 加强尼日利亚西北部食品供应链的监测对于监测新出现的病原体至关重要.
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