The clinical and laboratory features, and the response to treatment of visceral leishmaniasis were studied in 18 hospitalized patients. Clinical and laboratory findings were similar to those in patients with kala-azar in the Sudan and East Africa. Fever, heptosplenomegaly, relative lymphocytosis, leukopenia, low platelet counts, and severe anemia were common findings. Pentostam (sodium stibogluconate) was used to treat 17 patients and Neostibosam (ethylstibamine) for one. Three patients died. Four out of the 18 patients had not visited any known endemic area but the significance of this finding has not been fully evaluated.