Later, Liu et al., analyzed the hierarchy of immunodominance for the HA of a post-2009 influenza pandemic strain, A/Michigan/45/2015 (H1N1) in several species including humans: while no specific immunodominance pattern was found with guinea pigs, Sb and Ca-specific Abs dominated the immune response in mice and the site Sa was dominant in ferrets. This evidence concerns the gene DDX41 and influenza.