More Than 11 Children Under The Age Of Ten Years And Two Adults From Ngomeni Ward, Mwingi North Sub-County In Kitui Are Admitted At Garissa Referral Hospital After They Were Allegedly Bitten By Sand Flies And Are Currently Suffering From A Rare Disease Known As Kala Azar. According To Phillip Mutemi, A Doctor At Garissa Referral Hospital, Kala Azar Is A Disease Caused By Sandflies That Stay In Anthills.