在芬兰的市政废水中对甲基西林耐药Staphylococcus Aureus的表征
Ahmad Ibrahim Al-Mustapha1,2,3, Ananda Tiwari1,4, Venla Johansson1
1Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Finland.
One health (Amsterdam, Netherlands)
|September 12, 2024
概括
基于废水的监测有效检测出耐甲基金色葡萄球菌 (MRSA),这是抗菌素耐药性的关键指标. 该方法为人口健康提供了可靠的早期预警系统,补充了临床数据.
科学领域:
- 环境微生物学环境微生物学
- 公共卫生监督是对公共卫生的监督.
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 基于废水的监测 (WBS) 提供了一种对临床数据的补充方法,用于监测人口一级的抗菌素耐药性.
- 甲素耐药黄金葡萄球菌 (MRSA) 是一个重要的公共卫生问题,需要强有力的监测方法.
研究的目的:
- 评估WBS在废水中检测和表征MRSA的实用性,作为流行病准备工具.
- 评估芬兰废水中MRSA的流行,季节性和基因型特征.
主要方法:
- 从80个复合废水样本中选择性地分离和培养MRSA,使用CHROMagar MRSA.
- 对MRSA分离物的表型抗微生物敏感性测试 (AST) 和全基因组测序 (WGS).
- 对抗性基因,spa类型,序列类型 (ST) 和等离子体复制物的分析.
主要成果:
- 在27.5%的废水样本中检测到MRSA,并观察到季节性变化.
- 超过80%的分离物体对常见抗生素表现出耐药性;18.2%的抗菌物质对米辛有耐药性.
- 世界基因组确定了多种ST和spa类型,包括CC398和USA300类克隆,与国家临床数据具有很高的基因型一致性.
结论:
- 基于培养的WBS是一种敏感且可靠的方法,用于在人口层面监测MRSA.
- 微生物防治系统可以作为一种有效的早期预警系统,对抗微生物药物耐药性趋势进行预警,从而提高疫情防控能力.
- 该研究强调了WBS在追踪特定MRSA克隆和耐药性决定因素的传播方面的潜力.
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