目的：探讨直接免疫荧光法快速检测早期甲型流感病毒抗原及其临床应用。方法选择临床上诊断为急性呼吸道感染入院的患者，采集标本200例，将其分为两组：冬春两季流行季节儿童组（100例）和夏秋两季非流感流行期间儿童组（100例），使用美国D3 Ultra甲型流感病毒抗原检测试剂，采用荧光标记的单克隆抗体对感冒患者进行甲型流感病毒抗原检测。结果在冬春两季流感流行期间，100例儿童检测有8例阳性，阳性率为8％；在夏秋两季非流感流行期间100例儿童检测有2例阳性，阳性率为2％；两组阳性率比较差异有统计学意义（P＜0．05）。结论运用直接免疫荧光法快速检测甲型流感毒感抗原是一种经济、高效、快速、特异的检测方法，能指导临床快速诊断，合理用药。%Objective To study the direct immunofluorescence method for rapidly detecting influenza A virus antigen and its clinical application .Methods The inpatients with clinically diagnosed acute respiratory tract infection were selected .Two hundred samples were collected and divided into two groups :the winter and spring epidemic seasons children group and the summer and au‐tumn non‐epidemic seasons children group ,100 cases in each group .The US D3 Ultra influenza A virus antigen detection reagent was used .The fluorescence labeled monoclonal antibody was adopted to detect influenza A virus antigen in the patients with cold . Results During the winter and spring seasons of influenza prevalence ,8 cases of 100 detected cases were positive with the positive rate of 8% ;during the summer and autumn seasons of non‐influenza prevalence ,2 cases of 100 cases were positive with positive rate of 2% ,the difference in the positive rate between the two groups had statistical significance(P<0 .05) .Conclusion Applying the direct immunofluorescence method for rapidly detecting influenza A virus antigen is an economical ,efficient ,rapid and specific detec‐tion method ,and can guide clinical rapid diagnosis and rational medication .
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