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目的了解人群中流感流行的流感病毒型别 ,及时发现新的变异株。方法采用鸡胚和MDCK细胞培养 ,进行病毒分离 ,用血凝试验进行型和亚型鉴定 ,以及作抗原分析。结果 2 0 0 1年 4月在贵阳类流感病人中分离出一株A3 / 112 /GuiZhou/ 2 0 0 1的新变异株。结论在我省人群中出现甲3型 (A3 )流感病毒新变异株 ,必须加强流感监测 ,防止流感流行
Objective To understand the influenza type in the crowd and to discover new variants in time. Methods Chicken embryo and MDCK cell culture were used for virus isolation, identification of type and subtype by hemagglutination test, and antigen analysis. Results In April 2001, a new strain of A3 / 112 / GuiZhou / 2001 was isolated from Guiyang people. Conclusion A new variant of influenza A (A3) virus emerged in our province. Influenza surveillance must be strengthened to prevent the spread of influenza