Fig. 1From: Antigenic cartography of H1N1 influenza viruses using sequence-based antigenic distance calculationComparison of Experimental Data with Sequence-based Antigenic Distance. a Relative HAI log titer of ferret antiserum. b ELISA absorbances of ferret antiserum to rHA. c Amount of mouse derived monoclonal antibodies bound to rHA by ELISABack to article page