Fig. 3.

Geometric illustration of selected serum neutralization titres against TBEV, LIV, JEV, WNV, YFV (two strains) and DENV-2 made using antigenic cartography techniques. Sera are represented by white squares, and viruses are represented by green circles. Coloured error lines are shown for each virus and serum. The length of the error line is proportional to the difference between distance on the figure and the target distance; the colour indicates the direction of the difference (blue = positive difference, i.e. the distance on the figure is more than the target distance; red = negative).