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我们对两所中学参加地区暑期统考的高中二年级各一个班,无心、肺、肝、肾等疾患的64名学生(15—19岁),分别在复习考试前、后测定了血清 IgG、IgA和 IgM。两次测定前1月内学生无急性感染和未进行预防接种。方法在复习前1月和考完所有学科后当日,采集受试者静脉血用单向免疫扩散法测定血清 Ig,分别代表平常和考试期间水平。两次测定间隔2个月,均在相同条件下固定检验人员进行。免疫板和标准液由重庆医学检验试剂研究所提供。同时在复习考试期间用
64 students (15-19 years old) with two secondary schools attending the summer high school summer examinations in each of the two secondary schools who did not have heart, lung, liver and kidney disorders before and after the review examinations were tested for serum IgG, IgA And IgM. Within two months before the two tests no acute infection and no vaccination. Methods One month before the review and the day after the examination of all the subjects, blood samples were collected from venous blood by one-way immunodiffusion to represent the normal and the test period respectively. Two measurements interval of 2 months, were fixed under the same conditions inspectors. Immunoblotting and standards were provided by Chongqing Institute of Medical Laboratory Reagents. At the same time during the review exam