作者用ELISA法分别检测了108份百日咳患者、128份健康者(85名儿童、43名成人)和13份经脱毒的百日咳毒素免疫的儿童血清中抗百日咳毒素(PT)IgG抗体及其亚类含量,旨在了解以上3种人群中抗PTIgG亚类构成的区别.108份患者血清取自75例百日咳患者.其中5份采自症状出现两周内血清,45份采自症状出现后2～5周内血清,其余54份采自症状出现5周后血清.128名健康者中有85名未接种过百日 The authors tested anti-pertussis toxin (PT) IgG antibodies in 108 children with pertussis, 128 healthy children (85 children, 43 adults), and 13 immunized children with detoxified pertussis toxin The purpose of this study was to determine the difference between the anti-PTIgG subgroups in the above 3 populations.108 serum samples were taken from 75 patients with pertussis, 5 of which were taken from two weeks of symptom onset and 45 from 2 ~ 5 weeks serum, the remaining 54 were taken from the symptoms after 5 weeks of serum .128 healthy people in 85 were not vaccinated over a hundred days