深圳市某小学一起群体性眼部刺激性反应事件调查

Epidemiological investigation on an eye irritation outbreak in one primary school in Shenzhen City

目的了解某小学一起群体性眼部刺激性反应事件原因,为及时采取控制类似事件措施提供依据。方法采用现场流行病学调查方法和病因推断的原则,对事件进行描述和分析。结果病例均为一年级学生,共计108例,罹患率为33.5%（108/322）,主要症状为眼部痛、痒（99.1%）。发病高峰在事发当日10：00—11：00,事件波及6个班级,各班级罹患率差异有统计学意义（χ^2=57.07,P=0.00）。事件由校内不规范消杀工作所导致。学生撤离事发场所,彻底清洁事发教室,发病迅速终止。结论该事件为一起由杀虫剂引起的群体性眼部刺激性反应事件,科学开展消杀工作可防止类似事件的发生。

Objective To conduct epidemiological investigation and analysis on an eye irritation outbreak in one primary school. Methods The field epidemiology survey and etiology infer principles were adopted in this study. Results A total of 108 cases whose eyes were pain or itchy were found in this incident, the attack rate was 33.5%（ 108 / 322）. The peak incidence was between 10： 00-11： 00,all the cases were first grader students and attack rate was 33.5%（ 108 / 322）, which had statistical differences（ χ^2= 57.07,P = 0.00）. Insecticidal measures carried two days before the incident was the cause of the incident. After the evacuation of personal＇ s from the classrooms and cleaning the classrooms thoroughly, the incident was terminated rapidly. Conclusion The event is a group irritation event caused by insecticide residues.