伪菌高风险序列类型463 联合生产KPC-2和AFM-1 卡巴佩内马斯,中国,2020-2022年
Emerging infectious diseases
|September 22, 2023
概括
在中国的医院中发现了高风险的 Pseudomonas aeruginosa 菌株与carbapenemases 共同产生. 加强监测和感染控制至关重要,以防止这些危险细菌的传播.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 公共卫生 公共卫生
背景情况:
- Pseudomonas aeruginosa 是一种机会性病原体,经常与医院获得的感染有关.
- 碳胺酶产生肠杆菌 (CPE) 和其他碳胺耐药生物体 (CROs) 构成了严重的全球健康威胁.
- 序列类型463 (ST463) 是一种新兴的P. aeruginosa的高风险克隆.
研究的目的:
- 调查高风险的P. aeruginosa ST463.3的克隆传播和演变.
- 为了描述这些菌株所携带的碳烯酶基因 (KPC-2和AFM-1).
- 评估这些在中国医院的多抗药隔离物对公共卫生的影响.
主要方法:
- 对P. aeruginosa分离物的基因组分析.
- 检测和特征的碳烯酶基因 (blaKPC-2, blaAFM-1).
- 医院环境中的流行病学监测.
主要成果:
- 在2020年至2022年期间,P. aeruginosa ST463的克隆传播在中国医院中被确定.
- 鉴定出的菌株共产KPC-2和AFM-1碳烯酶,使其对碳烯酶具有高水平的耐药性.
- 这些多药耐药菌株由于其快速传播的潜力而构成重大威胁.
结论:
- P. aeruginosa ST463共同产生KPC-2和AFM-1的出现和传播突显了医疗保健环境中碳烯耐药性的不断变化的挑战.
- 更严格的感染控制措施和加强的监测对于制这些高风险克隆的传播至关重要.
- 持续监测是必要的,以防止进一步爆发和保护患者群体.
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