论文部分内容阅读
目的掌握地震后绵竹市血吸虫病潜在流行因素,为采取有效的防控措施提供依据。方法采用抽样调查的方法,抽取4个村(安置点)进行螺情、病情和居民问卷调查,对所有板房安置点进行螺情和公厕无害化状况调查,分析血吸虫病潜在流行因素。结果4个村抽查了178个条块,面积7.92 hm2,查出有螺条块165个,占92.70%;有螺面积7.33hm2,占93.49%。有螺框出现率9.56%～56.36%,钉螺密度0.50～4.99只/0.1 m2,解剖钉螺12 339只,未发现感染性钉螺。在23个安置点周围查到钉螺分布环境106个,钉螺面积为68 161 m2。4个村筛查居民6 519人,查出阳性115人,阳性率在1.15%～2.45%,筛查外来流动人员688人,查出阳性30人,阳性率为4.36%,未发现粪检阳性病人。抽查261座公厕,其中三格式135座,占51.7%。问卷调查居民217人,知晓血吸虫病的占82.49%,了解防护知识的占64.52%;接触有螺水体的占81.11%。结论外来传染源和现场环境大面积、高密度的钉螺是最主要的两大潜在流行因素,防控传染源的输入和压缩钉螺面积是确保灾后无大疫的重要措施。
Objective To understand the potential epidemic factors of schistosomiasis in Mianzhu City after the earthquake and provide the basis for effective prevention and control measures. Methods By means of sampling survey, 4 villages (resettlement sites) were sampled for investigation of snails, their condition and residents questionnaire. The investigation of all the resettlement sites in Banchi and the decontamination of toilets were conducted to analyze the potential epidemic factors of schistosomiasis. Results A total of 178 strips were found in 4 villages with an area of 7.92 hm2. A total of 165 spiral bands were found, accounting for 92.70% of the total. There were 7.33hm2 snails with a spiral area of 93.49%. There were 9.56% ~ 56.36% screw frame, 0.50 ~ 4.99 only /0.1 m2 of snail density, and 12 339 snails were dissected, no infectious snails were found. Surrounding the 23 resettlement sites, 106 snails were found in the distribution area with a snail area of 68 161 m2. Among the 5 villages with 4 519 residents screened, 115 were positive, with a positive rate of 1.15% -2.45% 688 staff, found 30 positive, the positive rate was 4.36%, did not find a positive fecal examination patients. Check 261 public toilets, of which 135 format 135, accounting for 51.7%. Questionnaire residents 217 people, know schistosomiasis accounted for 82.49%, 64.52% understand the protection of knowledge; contact with snail body accounted for 81.11%. Conclusion The large area and high density snails are the two main potential epidemic factors. The prevention and control of the source of infection and the compression of snails are important measures to ensure no severe epidemic after the disaster.