作者对曼氏血吸虫病治后的儿童进行了随访,证明对治后再感染,儿童可有抵抗力和易感之分,并运用多种方法比较了他们的免疫应答。研究对象是肯尼亚Machakos地区的Iietun社群中的小学生,他们曾在1981年10月接受过羟氨喹治疗。在治后9～12月随访的119名儿童中,22名重新有重度感染(100 The authors followed children who had been treated for schistosomiasis mansoni and found that they were resistant and susceptible to re-infection after treatment and used multiple methods to compare their immune responses. The subjects were pupils from the Iietun community in Machakos, Kenya, who had been treated with hydroxyquinate in October 1981. Of the 119 children followed up from September to December, 22 had recurrent severe infections (100%)