Influenza A viruses are a threat to poultry and human health. We investigated evolution of influenza A virus H7 and N9 subtypes in wild and domestic birds. Influenza A(H7N9) virus probably emerged after a long silent circulation in live poultry markets in eastern Asia.
CITATION STYLE
Lebarbenchon, C., Brown, J. D., & Stallknecht, D. E. (2013). Evolution of influenza A virus H7 and N9 subtypes, Eastern Asia. Emerging Infectious Diseases, 19(10), 1635–1638. https://doi.org/10.3201/eid1910.130609
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