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本次对郯城县三处乡(镇)不同年龄和职业的1015人做了锡克氏试验观察,阳性332人(32.71%),这表明仅67.29%的人具有免疫力,尚达不到控制白喉流行的水平,一旦有传染源传入,仍有流行的可能。并显示各年龄(?)间阳性率有显著性差异(X~2=52.58,P<0.01),总的趋势是随着年龄的增长而阳性率降低,提示我们在今后的计划免疫中,应重点保护10岁以内儿童.关于锡克氏试验设对照方面,本次观察证明假阳性率很低(1.87%),并多于72小时内消失,故认为可不设对照,若在注射后96小时一次观察,并不影响免疫水平估计。
This time, 1015 people of different ages and occupations in three townships (towns) in Tancheng County were observed by SICK’s test, and 332 were positive (32.71%), indicating that only 67.29% of the people were immunized and still not under control The prevalence of diphtheria, once the source of infection is introduced, there is still a pandemic. And showed that the positive rate of each age (?) Was significantly different (X ~ 2 = 52.58, P <0.01), the overall trend is with the increase of the age and the positive rate decreased, suggesting that we in the future immunization should Focusing on the protection of children under the age of 10. On the control of the test set, this observation shows that the false positive rate is very low (1.87%), and more than 72 hours disappear, so that no control, if 96 hours after injection An observation does not affect the estimation of the level of immunity.