英国一家大型肉类加工厂爆发COVID-19疫情:传播风险因素和控制措施
Yiqun Chen1, Helen Beattie1, Andrew Simpson1
1Science Division, Health and Safety Executive, Buxton SK17 9JN, UK.
肉类加工厂经常发生COVID-19疫情. 夜班的感染率更高,与噪音条件,难以保持距离和通风不足有关. 多层次的控制对于预防工作场所疫情爆发至关重要.
科学领域:
- 职业健康 职业健康 职业健康
- 传染病流行病学 传染病流行病学
- 工业卫生 工业卫生
背景情况:
- 肉类加工设施是全球COVID-19爆发的高风险环境.
- 2021年5月,英国一家肉类加工厂发生了重大疫情,影响了4.1%的工人.
研究的目的:
- 为了调查肉类加工厂内的COVID-19传播风险因素.
- 评估在活跃疫情期间实施的控制措施的有效性.
主要方法:
- 在现场进行调查,包括观察评估和实时环境测量.
- 进行了表面微生物采样,并对SARS-CoV-2 RNA进行了测试.
- 分析了生产白天和夜间班次之间的攻击率.
主要成果:
- 与白天班 (2.4%) 相比,夜班的COVID-19攻击率 (11.6%) 几乎是白天班的五倍.
- 确定的风险因素包括杂的环境,物理距离的挑战和低于最佳的通风.
- 在11.7%的采样表面上检测到SARS-CoV-2RNA.
结论:
- 工作场所爆发的COVID-19需要多层次的控制策略,具体风险评估的信息.
- 解决噪音,通风和共享交通等环境因素至关重要.
- 在肉类加工厂等工业环境中,加强感染预防措施是必要的.
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