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To elucidate the global diversity of H5 influenza viruses from a dynamic view, haemagglutinin (HA) sequences of 170 isolates were selected and analyzed in this study. Our results showed that H5 influenza isolates could be divided into two distinct lineages that circulated in the Eastern Hemisphere and the Western Hemisphere, respectively. This may be due to the separate migration routes and habitats...
N1 subtype influenza viruses have caused many epidemics and even a few pandemics in humans, pigs and fowls including 1918 human H1N1 pandemic, which killed 20–50 million people and the current avian H5N1 pandemic in the Eastern Hemisphere, which has caused great economic losses and posed a severe threat to human public health. To elucidate the whole diversity of N1 influenza viruses from a dynamic...
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