Studies of host preferences of wild-caught Phlebotomus orientalis and Ph. papatasi vectors of leishmaniasis in Sudan

PloS One
Arwa ElaagipMuzamil Mahdi Abdel Hamid

Abstract

Understanding the feeding behavior and host choice of sand flies provides valuable information on vector-host relationships and elucidates the epidemiological patterns of leishmaniasis transmission. Blood meal analysis studies are essential for estimating the efficiency of pathogen transmission, assessing the relative human disease risk, and assist in identifying the other potential hosts of leishmaniasis. In Sudan and most of East Africa, there are large remaining gaps in knowledge regarding the feeding habits of phlebotomine vectors. The study aimed to identify the blood meal sources and, therefore, the host preferences of the principal vectors Phlebotomus orientalis and Ph. papatasi in leishmaniasis endemic areas of eastern and central Sudan. Sand flies were collected from two endemic villages in eastern and central Sudan using CDC light traps and sticky traps. The phlebotomine sand flies were morphologically and then molecularly identified. The source of blood meal of the engorged females was determined using a multiplex PCR methodology and specific primers of cytochrome b gene of mitochondrial DNA for human, goat, cow, and dog. The detection of the Leishmania parasite was done using PCR. The total number of collected femal...Continue Reading

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Citations

Mar 19, 2021·Frontiers in Veterinary Science·Caitlin M Jones, Susan C Welburn
May 14, 2021·PLoS Neglected Tropical Diseases·Carlos Alberto Montenegro QuiñonezOlaf Horstick

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Methods Mentioned

BETA
PCR
enzyme-linked immunosorbent assay
ELISA

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