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It is associated with cutaneous leishmaniasis also called "oriental sore". It comes under the old world group of Leishmania species, along with L. major and L. tropica which are other agents causing oriental sore.
References
Schönian G, Akuffo H, Lewin S, et al. (March 2000). "Genetic variability within the species Leishmania aethiopica does not correlate with clinical variations of cutaneous leishmaniasis". Mol. Biochem. Parasitol. 106 (2): 239–48. doi:10.1016/S0166-6851(99)00216-9. PMID10699253.