在云南边防防御作战中,我们对执行潜伏任务的部队用涂驱、避蚊剂的方法预防山蛭(俗称旱蚂蟥)叮咬,认为有满意效果。药物为天津生产的《避蚊剂》(50ml 装)或桂林芳香厂生产的《驱蚊剂》(50ml 装)。执行任务的部队分为用药组与对照组。用药组34人,对照组21人,共执行潜伏任务12天。用药组在12天中执行任务144人次;未用药组在12天中执行任务84人次。用药方法是在执行潜伏任务前 In frontier defense and defensive operations in Yunnan, we used the method of flooding and mosquito repellent to prevent biting of leeches (commonly known as dry leech) on the task of performing latent tasks and found satisfactory results. Drugs are “mosquito repellent” (50ml pack) produced in Tianjin or “insect repellent” (50ml pack) produced by Guilin Aromatic Factory. The troops carrying out the task are divided into the medication group and the control group. Medication group 34 people, 21 people in the control group, a total of 12 days to perform latent tasks. The medication group performed 144 tasks in 12 days and the non-medication group performed 84 tasks in 12 days. Medication method is before the implementation of latent tasks