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KMID : 1143420170100240610
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Public Health Weekly Report
2017 Volume.10 No. 24 p.610 ~ p.613
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Trend of Human Infection with Avian Influenza Virus(A/H7N9) in China, 2016-17 season
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Kim In-Ho
Park Ok
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Abstract
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Human infection with avian influenza A/H7N9 virus was initially reported in China in 2013. Since then, a clear seasonal pattern of occurrence has been observed with peaks in winter season. Exposure to live poultry market (LPM) is known to be associated with a greater risk of infection and most of the cases were sporadic, except for a few clusters. This is the fifth season since its emergence and the number of cases exceeded the highest number of a previous season. Although no evidence of sustainable human to human transmission and no major differences in the risk factors of H7N9 infection were reported, increasing geographic spread and greater environmental contamination in LPM pose significant public health concern in neighboring countries. As the likelihood of the introduction through infected travelers remains high, continued monitoring of the situation and rapid response based on solid scientific evidence are strongly needed.
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KEYWORD
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