From 2013 to 2017, the central point of human infection with H7N9 avian influenza was mainly concentrated in Anhui, Fujian, Zhejiang, Jiangxi, and Hubei regions, and showed a trend of continuous westward spread in the eastern coastal areas.
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Based on the MaxEnt model the analysis of influencing factors and simulation of potential risk areas of human infection with avian influenza A (H7N9) in China.
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In general, the risk of human infection with H7N9 avian influenza in China from 2013 to 2017 showed an increasing trend year by year, among which the eastern and southeastern coastal areas of China have always been high-risk areas of the epidemic, and the epidemic risk showed a clear trend of spreading from the eastern and southeastern coastal areas of China to the inland and western regions. 3.2 Verification and an
In general, the risk of human infection with H7N9 avian influenza in China from 2013 to 2017 showed an increasing trend year by year, among which the eastern and southeastern coastal areas of China have always been high-risk areas of the epidemic, and the epidemic risk showed a clear trend of spreading from the eastern and southeastern coastal areas of China to the inland and western regions. 3.2 Verification and analysis of model simulation results 3.2.1 Direction and trend analysis As can be seen in Figure 4 (Standard deviational ellipses analysis) during the period 2013-2016,