Figure 1. Phylogenetic position of Nipah virus (NiV) isolate from Pteropus vampyrus bats (box) in combined analysis of nucleocapsid, phosphoprotein, matrix, fusion, and attachment gene open reading frames (8.3 kb). Maximum likelihood tree, general time reversible + Γ model, 1,000 bootstrap replicates. NiV P. vampyrus is distinct but forms a clade with other NiV sequences from Malaysia, and the isolate from Bangladesh is more distantly related and basal to this group. GenBank accession numbers are shown for all comparison isolates; the polymerase gene is missing for AF376747 and thus that isolate is excluded from analysis. Scale bar indicates nucleotide substitutions per site.