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作者对肯尼亚感染曼氏血吸虫人群中的免疫抑制机理进行研究,证明患者血清中存在一种抑制细胞免疫反应的因子。实验所用的淋巴细胞取自正常的、非感染者的外周血液,用20%的同种正常血清或
The authors studied the mechanism of immunosuppression in humans infected with Schistosoma mansoni in Kenya, demonstrating that there is a factor in the patient’s serum that suppresses cellular immune responses. Lymphocytes used in the experiment were obtained from normal, noninfected peripheral blood with 20% of normal serum or