Neighbor-Joining tree showing the relationships of the haplotypes of the ITS1-5.8S rDNA gene sequences of Leishmania tropica infecting Phlebotomus sergenti and patients, using MEGA 5 software, and it relates ITS1-5.8S rDNA gene haplotypes in GenBank. The tree shown is based on the Kimura 2-parameter model of nucleotide substitution. Bootstrap values are based on 1,000 replicates. L. aethiopica was used as outgroup. Black triangles indicate haplotypes of L. tropica from patients and black disks haplotypes of L. tropica from P. sergenti.