摘要:目的 分析禽流感病毒H 9 N 2 亚型毒株在深圳市不同人群和鸡群中的感染状况。 方法 采用常规的鸡胚双腔法分离流感病毒;采用红细胞凝集抑制试验(HI)和中和试验测定流感病毒抗体。 结果 从深圳市农贸市场300只鸡只样本中分离到27株H 9 N 2 亚型流感病毒，其抗体阳性率为7%，但未能从人群中分离到H 9 N 2 亚型流感病毒。人群血清中其抗体阳性率与职业高度相关，与鸡只密切接触的人群明显高于非密切接触的人群。 结论 禽流感病毒H 9 N 2 亚型对人群和鸡群均易感，可通过近距离的密切接触传播;推测人所感染的H 9 N 2 可能主要来源于鸡只等家禽。

    关键词:人群;鸡只;禽流感病毒H 9 N 2 亚型;抗体

    Investigation of infection status of avian influenza virus H 9 N 2 in humans and chickens in Shenzhen City.HE Jian-fan.

    CHENG Xiao-wen，L Xing，et al.

    (Shenzhen Municipal Center for Disease Control and Prevention，Shenzhen518020，Guang-dong，P.R.China)

    Abstract:Objective To analyze the infection of avian influenza virus H 9 N 2 in human and chicken of Shenzhen. Methods Virus was isolated from in embryonated chicken eggs and the antibody of influenza virus H 9 N 2 were detected by the method of hemag-glutination inhibition. Results 27strains of H 9 N 2 virus were isolated from300chickens ......