目的 通过总结分析一起工地登革热疫点蚊虫处置案例，探讨有害生物防制(pest control operations，PCO)公司在建筑工地登革热疫情灭蚊处置中应采取的方法与策略。方法 采用查阅病例数据、蚊媒监测数据、现场处置记录等相关资料的方法，对2023年深圳市南山区前海某建筑工地登革热疫情蚊媒处置过程进行调查、总结和分析。结果 针对本起疫情主要开展4个阶段防制，第一阶段为全面应急控制阶段，每天处置2次，每天出动人员最多达50人，使用药物52 L;第二阶段为巩固消杀阶段，每周处置2次，每次出动4人，使用药物4。5 L;第三阶段为应急预防消杀阶段，每天处置1次，每次出动6人，使用药物8L;第四阶段为收尾阶段，每天处置方法同第二阶段。采用的方法主要为超低容量喷雾与滞留喷洒结合灭成蚊，兼用热烟雾机对建筑内环境灭蚊，并全面清理孳生地。防控开始7d后，工地布雷图指数和诱蚊诱卵指数都降为0，无后续病例发生，防控成效显著。结论 工地疫点由于环境复杂，为防制带来较大困难，PCO应急队伍应采取适合的防控策略开展处置。
Emergency response and experience analysis of a dengue fever outbreak at a construction site in Shenzhen in 2023
Objective To investigate the methods and strategies that should be adopted by the pest control operations (PCO) company in mosquito control during a dengue fever outbreak in a construction site,by summarizing and analyzing a case of mosquito control in a dengue outbreak at a construction site. Methods By reviewing relevant materials such as case data,mosquito vector monitoring data,and on-site disposal records,we conducted an investigation,summary,and analysis of the mosquito control process during a dengue fever outbreak in a construction site in Qianhai,Nanshan District in 2023. Results Four main control stages were carried out in response to this outbreak. The first stage was the comprehensive emergency control stage,involving treatment twice daily,with up to 50 personnel deployed each day,using 52 liters of chemicals. The second stage was the consolidation control stage,with treatments twice a week,deploying 4 people each time,and using 4.5 liters of chemicals. The third stage was the emergency prevention control stage,with treatments once daily,deploying 6 people each time,and using 8 liters of chemicals. The fourth stage was the closing stage,where treatment methods were the same as in the second stage. The main methods adopted included ultra-low volume spraying combined with residual spraying for adult mosquito control,supplemented by thermal foggers for indoor environments in the construction site,along comprehensive removal of breeding sites. Seven days after the start of the control measures,both the Breteau index (BI) and the mosquito oviposition index (MOI) were reduced to 0,with no subsequent cases occurring,indicating a significant control effect. Conclusions The complex environment of the construction site poses significant challenges for control measures,and PCO emergency teams should adopt appropriate control strategies for disposal.
Construction sitedengue fever outbreakmosquito controlepidemic disposalexperience analysis
万方数据
维普
