ScienceDaily Posted September 19, 2013 Share Posted September 19, 2013 An in-depth evolutionary analysis of whole-genome sequences of different types of avian flu viruses has revealed that new H7N9 viruses emerged from distinct H9N2 viruses in a two-step process, first occurring in wild birds and then continuing in domestic birds. Read the full article on ScienceDaily Link to comment Share on other sites More sharing options...
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