作者于1977年,1978年间对长春地区1,265名三岁以内儿童做了普查。本文提示,我省位于祖国北部,天气寒冷,日照时间短,尤其是发病早期更易被人忽视,对婴幼儿不实行合理喂养,而易发病,并且往往成为患儿体弱及诱发其他疾病的重要因素。本文提出预防措施,并对发病因素进行了初步探讨。 The author conducted a survey of 1,265 children under the age of three in Changchun in 1977 and 1978. This paper suggests that the province is located in the northern part of the motherland, the weather is cold, sunshine time is short, especially in the early onset of more easily overlooked, infants and young children are not practiced reasonable feeding, and prone to disease, and often become infantile infirm and induce other diseases important factor. This paper presents preventive measures, and the incidence of a preliminary study.