【摘要】 目的了解公共场所从业人员嗜肺军团菌的感染情况并调查其认知水平及行为特征,探讨预防控制公共场所从业人群嗜肺军团菌感染方法。方法采取随机抽样的方法,抽取冷却水嗜肺军团菌阳性场所从业人群293人进行问卷调查及血清嗜肺军团菌抗体的测定。结果从业人员对公共场所空气质量满意率为54.6%;夏冬季分别有20.5%和22.9%的调查对象所在工作场所几乎不开窗换气;自觉症状发生率为30.4%;认知水平低,73.4%的从业人员认知正确率小于50%;血清学检测军团菌阳性率为23.4%,主要为米克型。使用集中空调是嗜肺军团菌感染的危险因素(OR=1.991,95%CI=1.103~3.593);采取不同的通风频率,自觉症状发生总频率评分的差异均具有统计学意义(夏天P=0.049,冬天P=0.006)。结论军团菌隐性感染、亚临床感染已经较为普遍。积极开展集中空调通风系统清洗消毒工作,加强从业人群空调安全使用行为及认知水平,加强开窗通风或新风量供给可有效预防控制军团菌感染。更多还原

【Abstract】 Objective To investigate the status of legionella pneumophila(LP) infection in occupational group in public places,and study the preventing knowledge level and behavior of occupational group,to explore the method of legionella pneumophila prevention and intervention.Methods Using stochastic sampling method,293 working staff of public places,of which cooling water were LP positive,were selected to take the epidemiological investigation and detection of serum Lp IgG were conducted.Results 54.6% staff were satisfied with indoor air quality of public places.20.5% staff didn’t open working places’ windows in summer and 22.9% staff in winter.30.4% staff felt uncomfortable symptoms.73.4% staff’s correct rate of the knowledge questionnaire were lower than 50%.The LP prevention positive rate positive rate was 23.4%,and the main type was micdadei.Using central air conditioning was LP infection risk factors of the working staffs in public places(OR=1.991,95% CI=1.103~3.593).Enhancing the ventilation can decrease the incidence of uncomfortable feeling(summer P=0.049,winter P=0.006).Conclusions LP infection happened commonly.Cleaning central air conditioning ventilation systems and having disinfection,improving the fresh air supplying and enhancing the people’s level of health,behavior and knowledge can effectively prevent and control legionella infection.更多还原