Physiological Age Structure and Leishmania spp. Detection in Phlebotomus (Larroussius) orientalis (Parrot, 1936) (Diptera: Psychodidae) at an Endemic Focus of Visceral Leishmaniasis in Northern Ethiopia

摘要: Visceral leishmaniasis (VL) caused by Leishmania donovani is endemic in northern Ethiopia, where P. orientalis the most important presumed vector. This study was designed to determine physiological age structure and occurrence of infection vector VL Tahtay Adiyabo district, Ethiopia. Sand flies were collected using CDC light traps from peridomestic agricultural fields between May 2011 April 2012 females dissected for determination detection promastigotes. also analyzed L. molecular methods. Of 1,282 examined abdominal stages characterization, 66.2%, 28.2%, 4.1%, 1.6% unfed, freshly fed, half-gravid, gravid. Parous rate unfed 34.1% 35.4% fields, respectively. Out 921 dissected, one specimen (0.1%) found naturally infected with Five pools (25 females) DNA spp. In particular, a single positive (0.5%). Based on this other evidences (abundance, human blood feeding, xenodiagnostic studies), principal focus.