Molecular Basis of Replication of Duck H5N1 Influenza Viruses in a Mammalian Mouse Model

Abstract excerpt

We recently analyzed a series of H5N1 viruses isolated from healthy ducks in southern China since 1999 and found that these viruses had progressively acquired the ability to replicate and cause disease in mice. In the present study, we explored the genetic basis of this change in host range by comparing two of the viruses that are genetically similar but differ in their ability to infect mice and have different...

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