摘要
目的通过对2013年香港确诊的1例人感染H7N9禽流感患者的流行病学调查,为人感染H7N9禽流感的科学防控提供依据。方法采用流行病学调查方法,调查病例的发病经过、可能的感染来源、传播途径及暴露因素等,医学观察患者的密切接触者,同时对外环境进行采样检测。结果确诊1例人感染H7N9禽流感病毒,经救治无效后死亡。患者有禽类及市场暴露史。6名密切接触者中未出现呼吸道症状,经采样检测也均排除H7N9禽流感。通过扩大监测流感样病例(ILI)2 057例以及严重急性呼吸道感染病例(SARI)62例,均未发现人感染H7N9禽流感病例。采集患周边市场禽类档口的17份环境标本进行检测,结果为5份鸡笼标本H9流感病毒核酸阳性,H7及H5均为阴性。结论患者的感染因素可能为家庭中加工禽类及暴露于活禽市场,应加强活禽市场管理,加大宣传力度,减少人感染H7N9流感病毒的风险。
Objective To investigate and analyze one case of human infection with highly pathogenic avian influenza virus（ H7N9） in Hong kang in 2013,so as to provide a scientific basis for control of avian influenza infection in human. Methods Epidemiological survey was carried out in process of morbidity,possible infection source,transmission route and risk factors,etc. Medical observation was carried out on those with close contacts with the patient. Meanwhile,external environment was sampled for testing. Results The patient was confirmed to be infected with human avian influenza H7N9 virus,and eventually died after treatment and cure.The patient had exposure history to poultry and poultry market. No respiratory symptoms were found in the 6 individuals with close contact to patient and were excluded H7N9 avian influenza through sampling inspection.By expanded surveillance on 2057 cases of influenza- like illness（ ILI） and 62 cases of severe acute respiratory infection（ SARI）,all the cases were confirmed to be H7N9 negative. Among the 17 environmental samples collected from the nearby poultry markets,5 coop swab specimens were detected to be N9 positive,while the H5 and H7 both negative. Conclusion Processing poultry at home and exposure to poultry market are the possible causes to H7N9 avian influenza. Thus,live poultry marketing management and propaganda both need to be strengthened to reduce the infection risk in human.
出处
《预防医学情报杂志》
CAS
2015年第7期505-508,共4页
Journal of Preventive Medicine Information
关键词
人感染H7N9禽流感
流行病学
调查
human infection with H7N9 avian influenza virus
epidemiology
investigation
