某军人群流感病毒抗体水平分析

Analysis on Level of Antibody Against Influenza Viruse in Population of Army

摘要: 本文报道了1998年10月和1999年4月,全军10个监测地区进行了流感病毒抗体检测。结果显示:甲3亚型毒株抗体已达饱和水平。抗体阳性率高达 91% ,GMT(抗体平均滴度 )102 ,易感人群逐渐缩小至 9% ,这就迫使流感病毒发生抗原性变异 ,所以要警惕新的流行株出现。对甲1亚型毒株之间存在很大差异 ,尤其是对A 京防 53 97(H1N1)易感人群达 6 6 % ,这给该毒株的传播提供了有利条件 ,一但感染会引起局部流行。对乙型流感病毒抵抗力始终较低 ,易感人群占 50 % ,该毒株也易引起局部爆发流行。从GMT波动提示 1998年至 1999年春军队人群中同时流行H3N2亚型 ,H1N1亚型和乙型流感病毒均为局部流行 ,未引起大流行。

Abstract: Detection on antibody against influenza viruse in ten surveillance sites of whole army was caried out from Oct .1998 to Apr 1999.The results showed that the positive rate of influenza antibody A3 was 91%, GMT,102. The sensitive population of influenza A1 (H 1N 1,A/Beijing/53/97) was up to 66% and the senstive population of influenza B was 50%.The influenza A H 3N 2 ,H 1N 1 and B were in local prevalence in popuplation of army during 1998 to 1999.