Preexisting immunity to the 2009 pandemic H1N1 virus reduces susceptibility to H5N1 infection and disease in ferrets
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Zoonotic infections with emerging influenza viruses occur in the context of population-wide immunity to seasonal strains. Because of the worldwide spread of highly pathogenic clade 2.3.4.4b H5N1 influenza viruses in wild birds, there have been numerous spillov... ...
