A NEW FOCUS OF KALA-AZAR DUE TO LEISHMANIA-DONOVANI SENSU-LATO IN KENYA

Three Masai children from Kekonyokie South Location, Kajiado District were diagnose with visceral leishmaniasis (kala-azar). Leishmanial iso lates from the patients were characterized as Leishman a donovani sens u lato, by cellulose acetate electorphoresis. Case histories indicated that the disease was acquired locally. A survey of 409 children at 7 local primary schools and one nursery school revealed no additional ca se. Sandfly surveys using light traps and sticky paper traps recovered 10 species of sandfly, including 2 Phlebotomus species. P. martini wa s prevalent throughout.the area. P. orientalis was only rarely encount ered, but it was the first collection record of this species in the so uthern portion of the Rift Valley in Kenya. Although no Leishmania-inf ected sandfly was found, P. martini is probably the vector of kala-aza r in the location, as it