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目的为了及时有效地控制人感染H7N9禽流感疫情,防制疫情扩散蔓延。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。结果确诊l例人感染H7N9禽流感病例,经抢救无效死亡。患者有明确的活禽市场接触史,咽拭子检测H7N9禽流感病毒核酸阳性。患者的密切接触者无继发病例。通过强化监测流感病例215例,均未发现H7N9禽流感病毒核酸阳性。患者暴露的活禽交易市场外环境20份标本检出3份H7N9禽流感病毒核酸阳性。结论以后仍有可能出现人感染H7N9禽流感病例,各项防控措施必须加强。
Objective To control the human infection of H7N9 bird flu in time and effectively and prevent the spread of the epidemic. Methods Epidemiological survey methods were used to investigate the pathogenesis of the disease, the possible sources of infection, the route of transmission and the factors of exposure, and the medical observation of close contacts of the patients. The results confirmed l human cases of H7N9 bird flu died after rescue invalid. Patients had a clear history of contact with the live poultry market, and throat swabs were positive for the H7N9 bird flu virus. Close contacts of patients without secondary cases. No positive H7N9 avian influenza virus nucleic acid was detected in 215 cases of intensive surveillance of influenza. Of the 20 samples exposed to the poultry market outside the patient’s exposure, 3 were positive for the H7N9 avian influenza virus. Conclusions There may still be cases of human infection with H7N9 bird flu in the future, and various prevention and control measures must be strengthened.