Visceral leishmaniasis (VL) caused by Leishmania donovani is endemic in northern Ethiopia. where P. orientalis is the most important presumed vector. This study was designed to determine the physiological age structure and the occurrence of Leishmania infection in the vector of VL in Tahtay Adiyabo district. https://foldlyers.shop/product-category/displayport-to-hdmi-type-a/