he gene segments of influenza A(H5N8) viruses reassorted extensively between the outbreaks. In this study the 2014-15 polymerase complexes were found to be more active, which is counterintuitive with the observed higher virulence of the 2016-17 viruses. Interestingly, the 2014-15 polymerase complexes also induced higher levels of IFNβ. These…[Read more]