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本文对848名初生种过卡介苗的8岁儿童进行皮内结素试验(1:2000旧结素0.1ml,皮内注射)、然后于72小时观察反应结果,将观察对象分为横径组、纵径组及平均直径组进行测量。局部硬结大于或等于5 mm为阳性。横、纵径组分别以最大横径及纵径为准,但同时记录纵、横径,并与本组平均直径比较。平均径组以纵、横平均直径为准。所有阴性反应儿童皮内接种卡介苗,第12周,三组作结素试验,以平均径为准观察,结素阳转率相似。种后第五天查接种局部反应,局部硬结平均直径5mm以上或有化脓、溃疡视为柯赫氏早发反应阳性。对单直径测量的二组观察了早发反应。横、纵、平均径组结素反应阳性率分别为59.1％、54.3％、56.0％,无统计学差异(P>0.05)。横、纵、平均径组结素阳性反应平均直径分别为6.0、6.5及5.7 mm。单一径组与平均径组比较无显著差异(P>
In this study, 848 children aged 8 years old with BCG vaccine were tested for endothelium (1: 2000 nodules, intradermal injection), and then the reaction was observed at 72 hours. The observation group was divided into three groups: Longitudinal group and average diameter group were measured. Local induration greater than or equal to 5 mm is positive. Horizontal and vertical diameter groups were the largest diameter and vertical diameter, whichever is the same, but at the same time recording vertical and horizontal diameter, and compared with the average diameter of the group. Average diameter group to vertical and horizontal average diameter shall prevail. All negative children were immunized intradermally with BCG. At the 12th week, three groups were used as the nidogen test. The fifth day after inoculation check the local reaction, the average local induration diameter of 5mm or more purulent, ulcer as Koch premature positive. Two groups of single diameter measurements observed early onset reactions. The positive rates of cross-sectional, longitudinal and average diameter agglutinin were 59.1%, 54.3% and 56.0% respectively, with no significant difference (P> 0.05). The mean diameter of horizontal, vertical and average diameter agglutinin positive reaction were 6.0, 6.5 and 5.7 mm respectively. There was no significant difference between the single diameter group and the average diameter group (P>