Figure. Phylogenetic trees based on the N open reading frame (ORF) (A, B) and the G ORF (C, D), with DNA sequences used for A and C and amino acid sequences for B and D. All sequences were compared with the reference sequences for each of the known henipavirus strains; Hendra virus/Australia/horse/1994/Hendra (GenBank accession no. AF017149), Nipah virus/Malaysia/human/1999 (GenBank accession no. AF212302), Nipah virus/Bangladesh/human/2004/Rajbari, R1 (GenBank accession no. AY988601), Nipah virus/Cambodia/bat/2004/KHM/CSUR381 (GenBank accession no. AY858110 [N ORF] and AY858111 [G ORF]) and Nipah virus/India/human/2007/GF (GenBank accession no. FJ513078). Phylogenetic trees were constructed by using the neighbor-joining algorithm in the MEGA4 software package (15). Scale bars represent substitutions per site. HeV, Hendra virus; NiV, Nipah virus.