Figure 1From: Pathogenicity of two recent Western Mediterranean West Nile virus isolates in a wild bird species indigenous to Southern Europe: the red-legged partridgeSurvival of red-legged partridges as a function of infection with either West Nile virus (WNV) isolate Morocco/2003 (open squares) or WNV isolate Spain/2007 (closed circles). Open triangles represent sham-inoculated partridges acting as non-infected controls. The percentage of surviving red-legged partridges in each group is plotted against day post-infection.Back to article page