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蛔虫是人体内的主要寄生虫之一,打虫的最好时间是秋末冬初。通过医学家的观察,蛔虫的卵极其微小,它随着不干净的食物进入人体后,先是在小肠内孵化为幼虫。幼虫身体极小,而且又滑又硬,它钻透肠壁以后,随着血液进入肝脏,又经肝脏静脉到心脏,然后到肺泡内寄生下来。当幼虫生长到有一定活动能力时,顺着气管、食道和胃
Roundworms are one of the major parasites in the human body and the best time to kill insects is early autumn and early winter. Through the observation of medical scientists, roundworm eggs are extremely small. After entering the body with unclean food, they first hatch into larvae in the small intestine. The larvae are extremely small and slippery and hard. After they penetrate the intestinal wall, they pass through the liver veins to the heart and then to the alveoli. When the larvae grow to have a certain activity, along the trachea, esophagus and stomach