supported by the National Key R&D Program of China(2016YFD0500800)。
H7 avian influenza viruses(AIVs) normally circulated among birds before. From 1996 to 2012, human infections with H7 AIVs(H7 N2, H7 N3, and H7 N7) were reported in Canada, Italy, Mexico, the Netherlands, the United Ki...