Malaria vector composition and insecticide susceptibility status in Guinea Conakry, West Africa

Medical and Veterinary Entomology
S B VezeneghoLizette L Koekemoer

Abstract

This study provides data on malaria vector species composition and insecticide susceptibility status from three localities in Guinea Conakry. A total of 497 mosquitoes were collected resting indoors and morphologically identified as belonging to the Anopheles gambiae complex. The majority of these were An. gambiae s.s. (99.6%), but a small percentage (0.4%) were identified as Anopheles arabiensis. Thirty-four Anopheles funestus s.s. were also collected. The molecular S form of An. gambiae s.s. was predominant over the M form in Siguiri (95%) and Boffa (97.4%), whereas at Mt Nimba the M form was more abundant (61.4%) than the S form (38.1%). One hybrid M/S specimen was recorded from Mt Nimba. Siguiri populations showed high levels of resistance to DDT, dieldrin and bendiocarb. Anopheles gambiae from Boffa were largely susceptible to the insecticides tested. At Mt Nimba, resistance to DDT and bendicocarb was detected. Biochemical enzyme analysis showed that an altered acetylcholinesterase is operating in the field at low levels. The frequency of the 1014F kdr allele in the An. gambiae S form was 0.24 at Siguiri and 0.14 at Mt Nimba. A single RR specimen was found in the M form. The heterogeneity in species composition and resista...Continue Reading

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Citations

Mar 23, 2011·Vector Borne and Zoonotic Diseases·Lizette L KoekemoerMaureen Coetzee
Jun 18, 2011·Parasites & Vectors·Richard H HuntMaureen Coetzee
Jan 19, 2012·Environmental Health Perspectives·Henk van den BergMikhail Ejov
Jan 22, 2013·Genetics·Davis C NwakanmaDavid J Conway
Mar 6, 2013·The American Journal of Tropical Medicine and Hygiene·Fabian M MashauriLeonard E G Mboera
Apr 10, 2016·Malaria Journal·Boubacar CoulibalyMichelle M Riehle
May 1, 2015·Evolutionary Applications·Billy Tene FossogCarlo Costantini
Jan 15, 2017·Parasites & Vectors·Marina Lidwine Olé SangbaMamadou Ousmane Ndiath
Jul 20, 2017·Environmental Science and Pollution Research International·Prabhakar MishraAmitava Mukherjee

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