infants' school

The Gesell development diagnosis scale ( GDDS) and social life ability scale for children from the infants to middle school students, that was Japanese S-M social life ability scale for intellectual development ( revised edition) were used to assess the intellectual development of all the subjects.

采用Gesell格塞尔发育诊断量表（Gesell development diagnosis scale，GDDS）和婴儿～初中学生社会生活能力量表即日本S-M社会生活能力检查修订版对两组婴儿的智力发育水平进行评定。

Methods: The blood lead levels of 1? 360 children, who were out-patients suspected lead poisoning and aged from 2 to 6 years, were determined by Anodic Stripping Voltametry ( ASV), and 616 from infants school were in control group.

方法采用ASV方法对1360名2～6岁保健门诊儿童血铅水平进行测定，同期检测616名幼儿园儿童并比较。

Results The epidemic lasted for one week and a total of 13 cases were found, including 8 infants, 1 primary school student and, 4 teaching stuff.

结果本次疫情流行历时一周，共发病13例，其中幼儿8例，小学生1例，教职工4例。

The incidences for infants, primary school students, secondary school students and undergraduates were 28.3%, 38.7%, 52.6% and 59.0% respectively ( P < 0.01).

幼儿、小学生、中学生和大学生的阳性率依次为28.3%，38.7%，52.6%，59.0%，差异有显著性（P<0.01）；

It's the common liability of the whole society to protect infants at school.

保护在校未成年学生的人身安全是全社会的共同责任。