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对Aerococcus spp.进行磁盘扩散敏感性测试方法的开发. 和临床和实验室标准研究所MIC断点的更新

Richard Maynard¹, Carmila Manuel¹, Synthia Simpkins¹

¹Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA.

Journal of clinical microbiology

|May 14, 2025

概括

这项研究更新了对Aerococcus物种的抗菌素敏感性测试指南,这是尿路感染的常见原因. 确定了安西林和酸的新突破点,调整了青素的突破点和磁盘扩散标准.

科学领域:

临床微生物学临床微生物学
细菌学细菌学是一门学科.
抗微生物耐药性抗微生物耐药性

背景情况:

越来越多的Aerococcus物种被认为是引起尿路感染和侵袭性疾病的尿病原体.
准确的抗微生物敏感性测试 (AST) 对于管理由于可变的耐药性模式而导致的Aerococcus感染至关重要.

研究的目的:

评估和更新临床和实验室标准研究所 (CLSI) 关于Aerococcus物种AST的M45指南.
为针对Aerococcus使用的关键抗菌剂建立新的和修订的断点.

主要方法:

使用微稀释和磁盘扩散方法对174个Aerococcus分离物的测试.
评估穆勒-亨顿基对Aerococcus urinae生长的影响.
分析MIC分布和药理动力学数据以设定断点.

主要成果:

已确定的安培和尼托福兰MIC断点和调整的青素MIC断点.
开发了青素,安培素,万科米辛,尼托福兰,西普罗夫洛克萨,莱沃弗洛克萨和四环素的磁盘扩散标准.
确定了确定塞福他西姆,塞夫特里亚克松,梅罗和三甲-硫甲醇断点的挑战.

结论:

这项研究提供了数据,支持对Aerococcus AST.的CLSI M45指南的修改建议.
更新的断点和磁盘扩散标准将提高对这些病原体的敏感性测试的准确性.

关键词:

它们是Aerococcus.这就是CLSI的CLSI.在MIC中,MIC是MIC,MIC是MIC.磁盘扩散是指光盘的扩散.易感性测试易感性测试易感性测试

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