Emergence of Eurasian Avian-Like Swine Influenza A (H1N1) Virus from an Adult Case in Fujian Provinc

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Dear Editor,rnAs we known,pigs play a vital role as genetic mixing vessels for human and avian influenza viruses as their tracheal epitheliums possess both sialic acid α-2,6-Gal and α-2,3-Gal receptors (Ma et al.2008),and swine influenza viruses occasionally infect humans (Shinde et al.2009).The Eurasian avian-like swine influenza A (H1N1) virus (EAS-H1N1) spread into China around 2007,when the first isolate (A/swine/Fujian/204/2007) from pigs in Fujian was reported via swine influenza surveillance program (Liu et al.2009).Much later,three cases of EAS-H1N1 infection in human were reported in China and they were all children under the age of three (Yang et al.2012;Wang et al.2013;Zhu et al.2016),whereas the forth case was an adult,who was confirmed in October,2016,in Fujian province.
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