1987年8～10月间,合肥地区气温高达23℃～34℃,相对湿度为85～90％,郊区某校先后发生2次毒隐翅虫皮炎暴发流行。 调查住校学生481人,发病184人,罹患率达38.2％。男、女发病率分别为41.3与30.7％,有显著性差异(P<0.05).对照组163人,罹患率为17.8％,与观察组相比,有极显著性差异(P<0.01).住在校外的82位工作人员,罹患率仅为1.2％.调查该校附近4 From August to October 1987, the temperature in Hefei was as high as 23 ℃ ~ 34 ℃ and the relative humidity was 85 ~ 90%. There were two outbreaks of venom dermatitis in a school in the suburbs successively. Investigation of 481 school students, the incidence of 184 people, the attack rate of 38.2%. The incidence rates of males and females were 41.3% and 30.7%, respectively, with a significant difference (P <0.05) .Among 163 cases in the control group, the attack rate was 17.8%, which was significantly different from the observation group (P <0.01). The 82 staff living outside the school suffered an attack rate of only 1.2%