Cutaneous leishmaniasis in the peace keeping force in East Sinai.

During the period from October 1982 to July 1985 cutaneous leishmaniasis was diagnosed in 113 Multinational Force and Observers (MFO) soldiers from various nations, East Sinai. Leishmania was isolated from twelve of these patients and maintained in vitro using Tanabe's medium. Intrasplenic inoculation of promastigotes from isolate cultures into hamsters resulted in dissemination patterns typical of cutaneous leishmaniasis. The excreted factor in culture when serotyped against known marker strains indicated subserotype A1B2. They also exhibited similar banding patterns to L. major L-137 for GPI, G 6-PD, MDH, NH, MPI, PGM and variant B for 6-PGDH. This leishmaniasis focus appears epidemiologically similar to that of nearby Mid Western Negev where transmission involves Phlebotomus papatasi, Psammomys, and Meriones.