Fig. 4: Antigenic relationships revealed by neutralisation tests.
From: An antigen panel to assess the regional relevance of foot and mouth disease vaccines
The antibody titres are expressed in log10, with the test viruses and their associated topotypes listed on the right-hand vertical axis. The different sera are on the x axis and named and coloured according to the vaccine strain against which the antiserum was raised. Duplicated sera are from different cattle. The order of both row and column items is defined by modular leaf ordering methods and based on the smallest average distance of the estimated subtrees. The panel viruses are highlighted with delineated reactivity pattern borders. A serotype O; B serotype A; C serotype SAT 1; D serotype SAT 2.
