Figure 1. Phylogenetic relationships between sand fly–borne phleboviruses in the Old World based on 589 nt partial nucleoprotein sequence. Phylogenetic tree was constructed using the neighbor-joining method with MEGA software version 6 (http://www.megasoftware.net). Black circles indicate viruses identified in the Balkan region. Boxes (top to bottom) include all viruses belonging to the Sandfly fever Naples virus species, viruses belonging to the Salehabad phlebovirus species, viruses belonging to the Sandfly fever Sicilian and Corfou tentative virus species. The robustness of each node was tested by 1,000 bootstrap replicates. GenBank accession numbers are provided. Scale bar indicates nucleotide substitutions per site.