Data S4. The effect of removing single individual antigens and sera on the map geometry. Each antigen and antiserum was individually removed from the antigenic map, and the full antigenic map was compared to the resulting optimized maps, as detailed in the supplementary text. The maps with the highest median Procrustes distance are displayed. (A-H) Interactive versions of the A/H5 3D antigenic map, represented as described for Data S2. In each panel, the full antigenic map is displayed (117 antigens and 29 post-infection sera), and the Procrustes arrows point towards the positions of each antigen and serum in the map in which a single individual antigen (A-C) or serum (D-H) was removed, whose name is indicated above the respective panel.Ag.: Antigen; Sr.: Serum.