有些家庭的孩子不断生病。大量资料证明,下述几种家庭的孩子患病较多。不讲卫生的家庭居住条件脏、乱、差,居室潮湿,通风不良,不见阳光,空气污浊;饮食不洁、常吃生冷食品;衣被不常洗晒,不常洗澡,不常剪指甲等。此类家庭的小儿易患传染病和寄生虫病。有些农家饲养牲畜采用散放或人畜混住的方式,这些 Some families continue to get sick. A large number of data prove that the following families suffer from more children. Poor hygiene, dirty living environment, chaos, poor, humid rooms, poor ventilation, no sunshine, air pollution; unclean eating, eat cold food; clothes are not often sunburn, often bathing, not often cut nails . Children of this family are predisposed to infectious and parasitic diseases. Some farm animals are kept in the form of loose or mixed livestock and livestock, these