连接冷却塔的社区菌爆发,2022年
Steven Rebellato1, Colin Lee1, Charles Gardner1
1Simcoe-Muskoka District Health Unit, Barrie, ON.
概括
2022年在Simcoe Muskoka爆发的Legionella疫情造成了35例病例,29例住院病例和1例死亡. 公共卫生干预集中在冷却塔 (CTs) 上,以管理疫情并防止未来的发生.
科学领域:
- 公共卫生 公共卫生
- 传染病流行病学 传染病流行病学
- 环境健康 环境健康
背景情况:
- 在2022年9月27日至10月15日期间,加拿大安大略省Simcoe Muskoka发生了一次严重的军团病爆发.
- 疫情导致35例确诊病例,1例死亡,29例住院治疗,突显了严重的公共卫生问题.
研究的目的:
- 描述Legionella疫情调查和管理过程.
- 确定公共卫生响应期间实施的环境和基础设施控制.
- 讨论挑战,并提出解决方案,以减轻未来的Legionella疫情.
主要方法:
- 当地卫生部门报告并调查了军团病症病例.
- 在6公里半径内的冷却塔 (CTs) 被确定为潜在的来源.
- 环境样本从19个CT和一个长期护理机构收集.
主要成果:
- 在35例病例中,83%被住院治疗,其中2例需要输管治疗.
- 在五个临床隔离物中的四个中发现了Legionella pneumophila.
- 一个临床分离体与CT分离体的序列类型相匹配.
结论:
- 与CTs相关的社区Legionella疫情需要大量资源来识别和控制风险.
- 有效的缓解涉及机构间协调,快速来源识别和严格的CT运行/维护标准.
- 实施和强制执行CT标准对于控制细菌生长和最大限度地减少气溶Legionella传播至关重要.
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