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目的 :调查潮汕地区健康青年中H9、H6、H5三种甲型流感病毒亚型的隐性感染情况 ,以期了解上述三种禽类甲型流感病毒亚型是否能够或已经从禽类直接或间接传染给人。方法 :潮汕地区健康青年血清 94 6份 ,通过HI实验进行抗体检测。结果 :H9亚型抗体阳性率达 37 2 % ;同时发现有三份血清存在H5抗体 ;未见H6亚型抗体的存在。结论 :H9亚型在健康青年中的隐性感染率非常高 ;H5亚型抗体的存在也应值得注意。
Objective: To investigate the latent infection of H9, H6 and H5 subtypes of healthy youth in Chaoshan region in order to know whether the above three avian influenza A virus subtypes can or have been transmitted from birds directly or indirectly people. Methods: A total of 946 serum samples from healthy youth in Chaoshan region were tested for HI antibody test. Results: The positive rate of H9 subtype antibody was 37 2%. At the same time, there were three serum H5 antibodies; no H6 subtype antibody was found. Conclusion: H9 subtypes have a very high prevalence of latent infection in healthy youth. The presence of H5 subtype antibodies should also be noted.