绥江县2007年急性出血性结膜炎暴发流行病学调查

Epidemiology Investigation of Acute Hemorrhagic Conjunctivitis Outbreak in Suijiang County

目的了解昭通市绥江县急性出血性结膜炎(简称AHC)流行的原因。方法用描述流行病学方法对在AHC流行时的个案调查表进行分析,采集部分AHC病人眼拭子标本,进行病毒分离。结果2007年8—9月共发病2336例。罹患率1464.75/10万,通过直接或间接接触传播发病以农民为主,占发病总数的46.36%;其次是学生,占31.94%。从采集的10份眼拭子标本中分离柯萨奇病毒A24变种5株。结论绥江县AHC流行是由柯萨奇病毒A24变异株引起,今后要加强疫情监测及健康教育力度,尤其是农民、学生AHC卫生知识宣传,防止疫情再次暴发。

[ Objective] To investigate the epidemiological factors of acute hemorrhagic conjunctivitis （AHC） in Suijiang. [ Methods] Descriptive epidemiology was used to analysis cases of AHC during the AHC epidemic season. Viruses from the conjunctival swabs were isolated and identified. [ Results] A total of 2336 cases were recorded during august to September In 2007 with an average incidence of 1464.75 per 100 000. Peasants accounted for 46.4% of total cases, while students occupied 31.94%. 5 viral strains were isolated from 10 eye swabs and were identified as Coxsackie virus A24 variant. [ Conclusion] Coxsackie virus A24 variant was the pathogen of epidemic of AHC in Suijiang. Epidemic surveillance and education should be strengthened especially for the peasants and students to prevent and Control ACH outbreak.