1临床资料患者，女，42岁，山东省汶上县人。4周前到本地某养鸡场从事鸡粪清理运输工作，第2天双耳廓、颈部、四肢末端时感疫痒，未在意，继续从事上述工作。此后数天发展至双腋部、胸背及双侧腹股沟，病痒难忍，直至以手抓破皮肤。在抓痒处可见红色小虫，针尖大小，可活动，虫 1 clinical data, female, 42 years old, Wenshang County, Shandong Province. 4 weeks ago to a chicken farm in the local cleaning and transportation of chicken manure, the first two days of pinna, neck, extremities when the end of the sense of itching, did not care, continue to engage in these tasks. After several days of development to the double axilla, chest and back and bilateral groin, itchy and unbearable, until the hands scratched the skin. Visible in the scratch itch red bugs, tip size, activity, insects