10.6084/m9.figshare.1291043.v1 Ian M. Mackay Ian M. Mackay Proposed evolution of influenza A(H7N9) viruses figshare 2015 influenza virus reassortment emergence Virology Diseases Pathogenesis Infectious Diseases Evolutionary Biology 2015-01-20 00:14:40 Figure https://figshare.com/articles/figure/Proposed_evolution_of_influenza_A_H7N9_viruses/1291043 <p>An attempt to graphically represent the many stages of viral gene mixing and animal contacts that have resulted in a triple reassorted influenza A virus, a strain of the <strong>H7N9</strong> subtye. This strain has been infecting humans, mostly in China's southeeast, since 2013 and is continually mutating, as viruses do.</p>