Abstract：Objective To investigate the epidemiological characteristics of human infection with avian influenza A H7N9 virus in Guangzhou city from 2014 to 2017, to analyze the effects of meteorological factors and temporary closure of poultry markets on the incidence of H7N9 avian influenza by using negative binomial regression model, and to provide a reference basis for prevention and control of H7N9 avian influenza. Methods The information aboutthe incidence of human infection with avian influenza A H7N9 virus and the meteorological data in Guangzhou city during 2014-2017 were collected and analyzed. Cross-correlation analysis was performed to determine the influencing factors. The negative binomial regression model was employed to analyze the correlation of meteorological factors and temporary closure of poultry markets with the incidence of H7N9 avian influenza. Results A total of 43 cases of human infection with avian influenza A H7N9 virus were reported in Guangzhou city, and most of the cases occurred in January and February (n=35, 81.40%). The male-to-female sex ratio was 2.07:1.00. Analysis based on the negative binomial regression model showed that the weekly average temperature (β=-0.282, 95%CI:-0.404-0.160), the weekly average wind velocity (β=-1.277, 95%CI:-2.290-0.263) and temporary closure of poultry markets (β=-1.265, 95%CI:-2.417-0.113)were the factors affecting the incidence of H7N9 avian influenza (P<0.05). Conclusions The incidence of H7N9 avian influenza in Guangzhou city in 2014-2017 was associated with the weekly average temperature, the weekly average wind velocity and temporary closure of poultry markets. The results can be used to forecast the incidence of H7N9 avian influenza, and simultaneously provide a reference basis for the government to formulate prevention and control measures against H7N9 avian influenza.
陆剑云, 刘艳慧, 李美霞, 刘文辉, 李铁钢. 2014—2017年广州市气象因素、休市措施与H7N9禽流感发病相关性研究[J]. 实用预防医学, 2020, 27(2): 129-131.
LU Jian-yun, LIU Yan-hui, LI Mei-xia, LIU Wen-hui, LI Tie-gang. Correlation of meteorological factors and temporary closure of poultry markets with the incidence of H7N9 avian influenza in Guangzhou city, 2014-2017. , 2020, 27(2): 129-131.
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2020, Vol. 27 
