宁夏职业暴露人群和环境高致病性禽流感感染情况调查

目的了解高致病性禽流感病毒在宁夏职业暴露人群中的感染状况和其在环境中的分布情况,为相关研究和防控工作提供依据。方法对银川市兴庆区、石嘴山市平罗县、吴忠市利通区、中卫市沙坡头区和固原市原州区五个调查点的职业人群进行抽样调查,问卷调查的同时采集调查对象的血清和对应的环境标本。血清标本利用马血球血凝抑制实验(HI)进行H5N1抗体检测。对环境标本进行禽流感病毒核酸检测。结果98.30%的职业暴露人群近一个月没有接触过病死禽。调查对象的411份血清标本H5N1禽流感病毒抗体均为阴性,258份环境标本H5N1禽流感病毒核酸均为阴性,但发现环境标本H9亚型禽流感病毒阳性率为6.98%。结论宁夏地区禽流感职业暴露人群中尚未发现H5N1高致病性禽流感病毒感染。应做好禽间和人间的禽流感病毒监测和防护教育。

Investigation of Avian Influenza A Virus Infection among Occupational Exposed Population of Ningxia

Objective To investigate the infection changes and environmental distribution of the H5N1 subtype avian influenza virus among occupational exposed population in Ningxia.Methods A sampling survey was conducted in Ningxia.The antibody and nucleate of H5N1 subtype avian influenza virus was detected in samples.Results 98.30% of the occupational exposure population did not contact with dead poultry during the last month.The antibody and nucleate of H5N1 subtype avian influenza virus in all samples showed negative.However,H9 subtype positive rate was 6.98% among environmental samples.Conclusions The H5N1 subtype avian influenza virus infection was not found in occupational exposure population of Ningxia.