非SARS患者中儿童与成人抗SARS抗体检测与比较

为了调查非SARS患者中儿童与成人体内抗SARS血清抗体的阳性率 ,随意选取我院门诊及住院的 14岁以下儿童患者 197例 ,健康儿童 15 6例 ,同时选取我院 18岁以上门诊及住院的病人 4 5 3例 ,无偿献血者 5 0 2例 ,采用两种抗SARS冠状病毒特异性抗体检测试剂盒及ELISA方法测定血清中抗SARS抗体。检测结果发现 ,健康儿童与患病儿童人群中抗SARSIgG抗体的阳性率均为 2 %左右 ( 4 /197和 3/15 6 ) ,而健康成人和成人患者中抗SARSIgG抗体的阳性率均为 0 .2 %左右 ( 1/45 3和 1/5 0 2 ) ,两者相比差异具有显著性意义 ( χ2 =11.6 1,P <0 .0 0 1)。而IgM抗体均为阴性。结论 :儿童体内抗SARSIgG抗体的阳性率显著高于成人

Determination and Comparison of Anti-SARS Antibody in Children and Adults

To investigate the positive rate of anti-SARS antibody in children and adults without SARS, 197 paediatric patients under 14 years old from inpatient and outpatient department of our hospital, 156 healthy children pupils from primary school, 453 adult patients over 18 years old from inpatient and outpatient department of our hospital and other 502 healthy adult blood donors were selected. Anti-SARS antibodies were determined by anti-SARS specific antibody detection kit and ELISA method. The results showed that both the positive rates of IgG antibody in paediatric patients and healthy children were about 2% (4/197 and 3/156), while the positive rates in adult patients and healthy adults were about 0.2% (1/453 and 1/502). The difference between the positive rates of children and adults was significant (chi(2) = 11.61, P < 0.001). IgM antibody was negative in all the samples. It is concluded that the anti-SARS IgG antibody positive rate in children was obvious higher than that in adults. This may be the cause why the cases with SARS in children is much less than in adults.