福建省厦门市某中学双线盗毒蛾幼虫致过敏性皮炎暴发的流行病学调查

Epidemiological survey of outbreak of atopic dermatitis caused by Porthesia scintillans larva in a middle school in Xiamen

2016年6月,福建省厦门市某中学学生发生不明原因皮疹,共81例病例,其中77例为初二学生,学生的罹患率为4.6%(81/1 753),皮疹主要为前臂部位的红色斑丘疹。流行病学调查结果显示,在学校的芒果树下练习排球垫球(OR=5.1,95%CI:1.8~14.4)是发生皮炎的危险因素,练习垫球后及时清洗手臂具有保护作用(OR=0.4,95%CI:0.2~0.6)。连续湿热雨天后双线盗毒蛾幼虫在芒果树上大量繁殖,并掉落地面,导致学生体育课垫球时接触到毒毛。本次调查未在病例皮疹部位直接找到蛾幼虫毒毛,但根据调查结果推测该起皮炎暴发为芒果树上的双线盗毒蛾幼虫所致。为预防毒蛾幼虫皮炎再次发生,建议学校在毒蛾幼虫繁殖季节对校园内树木开展杀虫工作,并教育学生在毒蛾幼虫繁殖季节不要在树下活动,活动后要及时清洗手臂等暴露部位。

In June 2016,a total grade of 81 middle The school students were was diagnosed with dermatitis of unknown cause and upper 77 of arm the was/1 753）（diagnosed the cases were 2 students.overall attack survey rate 4.6%that 81 and maculopapule on the main clinical with manifestation.Epidemiological showed practicing volleyball under mango trees was highly（OR=5.1,95%CI：1.8-14.4）;while washing hands after volleyball practice=0.4,95%CI：0.2-0.6）.Porthesia scintillans larva incased obviously in the wet associated had the incidence of dermatitis（protective effect against school dermatitis due OR mango trees in the to warm fell and the plum rain season.Students came into under contact the with the venomous setae of the Porthesia Porthesia larva scintillans scintillans likely larva larva be which was to ground when affected they practiced volleyball trees.No venomous setae of students,but found directly in the survey results indicated that Porthesia scintillans was to the cause of of the their dermatitis.breeding It is suggested that the schools should students conduct for elimination avoidance of Porthesia any larva,especially period,and scintillans under during health education in the of activity affected trees and washing hands and exposed skin after activity.