应用新合成杀虫剂双甲脒(Amitraz)对人体蠕形螨进行体外药物杀灭试验。於门诊对就诊病人用拇指挤压法检查螨,由额、鼻尖、鼻沟及颏部四个部位取材。每份标本以毛囊蠕形螨(以下称Df)为准,活动螨数在20条以上者为观察对象,同时计数皮脂蠕形螨(以下称D6)活动螨数。每试验设对照组同样要求。试药混於花生油中,设10％、5％、1％及0.5％四个组,对照组只用花生油无药,每组各观察20例。 In vitro drug killing test on Demodex mites using a new synthetic insecticide Amitraz. At the clinic for treatment of patients with the thumb squeeze method to check mites, from the amount of nose tip nasal groove and chin four parts drawn. Each specimen was divided into three groups: Demodex folliculorum (hereinafter referred to as Df), the number of active mite in more than 20 were observed, and the number of active mite (hereinafter referred to as D6) was counted. The same set of controls for each trial also required. The test drugs were mixed in peanut oil, and the four groups were set at 10%, 5%, 1% and 0.5%. In the control group, only peanut oil was used. There were 20 cases in each group.