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湖北武汉市21名接受血浆疗法的患者，在接受治疗12小时至24小时后，临床体征和症状有明显好转。

华中科技大学附属协和医院血液科教授梅恒周三接受媒体访问时表示，血浆疗法的原理是利用康复者血浆中针对新型冠状病毒的特异性抗体，迅速捕捉病毒，激活体内的补体系统清除病毒，是在未有疫苗及特效药的情况下，较有效的治疗方法。

他说，血浆疗法主要是透过输血，把康复者血液中的抗体输入重症患者的体内，有效性体现于病毒载量降低、淋巴细胞比例上升、血氧饱和度上升，以及体温、呼吸等症状好转。