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After virus inactivation, the purity of coagulable protein of fibrinogen was improved from （70.9±8.5）% to （85.5±6.0）%, and the recovery rate was maintained at （64.7±3.8）%.病毒灭活后纤原的可凝固蛋白纯度由原来的（70．9±85）％提高至（85．5±6．0）％，回收率可保持在（64．7