调查Burkholderia cepacia复合物的伪爆发,由受污染的酸盐缓冲盐水引起的
Anne Stone1, Dawn Nolt2, Rabeka Ali3
1Division of Pediatric Pulmonology and Sleep Medicine, Department of Pediatrics, OHSU Doernbecher Children's Hospital, Portland, Oregon, United States.
American journal of infection control
|January 11, 2026
概括
不当的实验室过程导致了Burkholderia污染物的伪爆发. 污染源于在样本处理中使用的酸盐缓冲盐水 (PBS),这凸显了严格实验室协议的必要性.
科学领域:
- 临床微生物学 临床微生物学
- 预防和控制感染的预防和控制.
- 基因组流行病学 基因组流行病学
背景情况:
- Burkholderia cepacia复合体 (BCC) 导致与医疗相关的感染,特别是在免疫功能低下的个体和患有囊性纤维化症 (PwCF) 的患者中.
- 发现了Burkholderia污染物的伪爆发,与实验室程序相关,影响了手术和呼吸器样本.
- 调查的重点是免疫能力强的个体和PwCF.
研究的目的:
- 为了调查Burkholderia cepacia复合物 (BCC) 分离物的发病率增加的原因.
- 在实验室过程中识别污染源.
- 在疫情调查中评估监测和基因组工具的有效性.
主要方法:
- 利用电子临床监测,环境采样和实验室过程审查.
- 进行了物种识别和随机放大多态DNA (RAPD) 排型.
- 进行全基因组测序 (WGS) 用于克隆性分析.
主要成果:
- 确定了19个Burkholderia cepacia复合体 (BCC) 隔离物,包括试剂的隔离物.
- 从酸盐缓冲盐水 (PBS) 和用于样本处理的Sputolysin中恢复了Burkholderia污染物.
- 基因组分析证实了克隆性,确定PBS是外部污染的来源.
结论:
- 多学科合作对于有效的感染预防和控制至关重要.
- 强大的电子健康信息系统有助于及时检测和干预.
- 微生物基因组工具对于识别疫情来源和确保患者安全至关重要.
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