Objecive To approach into the expression of peripheral blood neutrophil CD64 in children with acute upper respiratory tract infection for authenticating bacterial orand virus infection.

• 目的应用流式细胞仪测定小儿急性上呼吸道感染患儿外周血中性粒细胞CD64表达水平,用于鉴别诊断细菌性感染和病毒性感染。