Fig. 2From: Rickettsiales in the WHO European Region: an update from a One Health perspectiveRickettsiales in arthropod vectors, animals and humans in the WHO European Region. Species lacking a clear taxonomic definition are omitted from the chart and reported analytically in Additional file 1: Table S4, S5 and S6. Species characterized but as yet uncultured (Candidatus) are reported in Roman font; other species are shown in italicsBack to article page