摘要
目的调查一起人感染H7N9禽流感家庭聚集性疫情的流行病学特征,为制定人感染H7N9禽流感防控对策提供科学依据。方法应用现场流行病学方法对2014年一起人感染H7N9禽流感家庭聚集性病例及其密切接触者和禽类市场进行流行病学调查,采集病例呼吸道标本和环境标本,用RT-PCR方法检测H7N9禽流感病毒核酸。结果病例A杨某于2014年1月24日发病,1月30日确诊,病情危重,曾在农贸市场从事猪肉售卖,有活禽市场暴露史;病例B为病例A女儿,父女同床睡,生活接触密切,病例B放学后常在父亲卖肉的农贸市场玩耍,亦有活禽市场暴露史,于1月30日发病,症状较轻。结论该起疫情为人感染H7N9禽流感家庭聚集性疫情,2例既有可能是共同的活禽市场暴露史而感染,也存在父亲传给女儿的可能。
Objective To study the epidemiological characteristics of a family cluster of human infection with avian influenza A （H7N9） virus so as to provide scientific evidence for formulating prevention and control countermeasures of human infection with the H7N9 avian influenza. Methods Field epidemiological method was used to survey the cases, close contacts and the related poultry market of a family cluster of human infection with avian influenza A （H7N9） virus in 2014. Respiratory tract specimens and environmental samples were collected, and nucleic acid of the H7N9 virus was detected by RT-PCR. Results The male patient Yang in the case A was sick on January 24th, 2014. He was diagnosed on January 30th, 2014, and his condition was critical. Yang was a butcher working in a farmer’s market, and had an exposure history of live poultry market. The patient in the case B was Yang’s daughter. The father and the daughter shared the same bed, and lived in close contact with each other. Yang’s daughter often played in the farmer’s market after school, and also had an exposure history of live poultry market. She was sick on January 30th, 2014, but her condition was not serious. Conclusions This epidemic is a family cluster of human infection with avian influenza A （H7N9） virus. The two cases may be infected by the common exposure history of the live poultry market, or there may be a possibility that the infection passes on from the father to the daughter.
出处
《实用预防医学》
CAS
2017年第9期1140-1142,F0003,共4页
Practical Preventive Medicine
基金
湖南省卫生厅重点课题(A2011-006)
