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Anopheles funestus

Mosquitoes as a feasible sentinel group for anti-malarial resistance surveillance by Next Generation Sequencing of Plasmodium falciparum

October 22, 2019 - 17:00 -- Open Access
Author(s): 
Rebecca Smith-Aguasca, Himanshu Gupta, Estefania Uberegui, Mara Maquina, Francisco Saute, Krijn P. Paaijmans, Alfredo Mayor and Silvie Huijben
Reference: 
Malaria Journal 2019 18:351, 17 October 2019

Plasmodium falciparum drug resistance surveillance is key to successful disease control and eradication. Contemporary methods that only allow determination of prevalence of resistance are expensive, time consuming and require ethical considerations. A newer method involving Next Generation Sequencing (NGS) permits obtaining frequency of resistance while allowing to detect minority variants in mixed infections. Here, NGS was tested for P. falciparum resistance marker detection in mosquito samples as a feasible and suitable alternative for molecular resistance surveillance. Anopheles funestus were collected in southern Mozambique using CDC light traps and manual collections. DNA was extracted from either whole mosquito, head-thorax and abdomen separately or pools of five mosquitoes. These samples were screened for P. falciparum and if positive for k13, pfcrt, pfmdr1, pfdhps and pfdhfr mutations related to anti-malarial drug resistance with Sanger sequencing and NGS.

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Using a miniaturized double-net trap (DN-Mini) to assess relationships between indoor–outdoor biting preferences and physiological ages of two malaria vectors, Anopheles arabiensis and Anopheles funestus

August 27, 2019 - 21:56 -- Open Access
Author(s): 
Alex J. Limwagu, Emmanuel W. Kaindoa, Fredros O. Okumu, et al.
Reference: 
Malaria Journal 2019 18:282, 22 August 2019

Effective malaria surveillance requires detailed assessments of mosquitoes biting indoors, where interventions such as insecticide-treated nets work best, and outdoors, where other interventions may be required. Such assessments often involve volunteers exposing their legs to attract mosquitoes [i.e., human landing catches (HLC)], a procedure with significant safety and ethical concerns. Here, an exposure-free, miniaturized, double-net trap (DN-Mini) is used to assess relationships between indoor–outdoor biting preferences of malaria vectors, Anopheles arabiensis and Anopheles funestus, and their physiological ages (approximated by parity and insemination states).

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Household-level and surrounding peri-domestic environmental characteristics associated with malaria vectors Anopheles arabiensis and Anopheles funestus along an urban–rural continuum in Blantyre, Malawi

June 13, 2018 - 08:27 -- Open Access
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Author(s): 
Nicole F. Dear, Chifundo Kadangwe, Themba Mzilahowa, Andy Bauleni, Don P. Mathanga, Chifundo Duster, Edward D. Walker and Mark L. Wilson
Reference: 
Malaria Journal 2018 17:229, 8 June 2018

This study revealed how small-scale agriculture along a rural-to-urban transition was associated with An. arabiensis and An. funestus indoor abundances, and that indoor Anopheles density can be high within Blantyre city limits, particularly where agriculture is present

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The impact of temperature on insecticide toxicity against the malaria vectors Anopheles arabiensis and Anopheles funestus

April 3, 2018 - 15:18 -- Open Access
Author(s): 
Katey D. Glunt, Shüné V. Oliver, Richard H. Hunt and Krijn P. Paaijmans
Reference: 
Malaria Journal 2018 17:131, 2 April 2018

Environmental temperature has a marked effect on the efficacy of insecticides used in public health against important African malaria vectors.

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Population genetic structure of the malaria vector Anopheles funestus, in a recently re-colonized area of the Senegal River basin and human-induced environmental changes

September 7, 2012 - 07:48 -- Kabogo Ndegwa
Author(s): 
Samb B, Dia I, Konate L, Ayala D, Fontenille D, Cohuet A
Reference: 
Parasites & Vectors 2012, 5:188 (5 September 2012)

MalariaWorldThe high genetic diversity among populations from Senegal River basin coupled with no evidence of bottleneck and with a gene flow with southern population suggests that the re-colonization was likely carried out by a massive and repeated stepping-stone dispersion starting from the neighboring areas where An. funestus endured.

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Thermal limits of wild and laboratory strains of two African malaria vector species, Anopheles arabiensis and Anopheles funestus

July 13, 2012 - 10:26 -- Patrick Sampao
Author(s): 
Lyons CL, Coetzee M, Terblanche JS, Chown SL
Reference: 
Malaria Journal 2012, 11:226 (6 July 2012)

MalariaWorldThese findings and the greater tolerance of females to thermal extremes may have significant implications for future malaria transmission, especially in areas of current seasonal transmission and in areas on the boundaries of current vector distribution.

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Does moonlight influence the biting behaviour of Anopheles funestus? (pages 240–246)

August 9, 2011 - 11:27 -- Kabogo Ndegwa
Author(s): 
A. Kampango, N. Cuamba, J. D. Charlwood
Reference: 
Medical and Veterinary Entomology, Volume 25, Issue 3, pages 240–246, September 2011

The possible effect of moonlight on the biting behaviour of mosquitoes in southern Mozambique, in particular that of Anopheles funestus (Diptera: Culicidae), a primary vector of malaria, was investigated by comparing catches indoors and outdoors using CDC light traps and ‘Furvela’ tent traps, respectively, for 35 consecutive nights, from 9 September to 15 October 2008.

Identification and distribution of a GABA receptor mutation conferring dieldrin resistance in the malaria vector Anopheles funestus in Africa

June 21, 2011 - 13:49 -- Kabogo Ndegwa
Author(s): 
Charles S. Wondji, Roch K. Dabire, Zainab Tukur, Helen Irving, Rousseau Djouaka, John C. Morgan
Reference: 
Insect Biochemistry and Molecular Biology, Volume 41, Issue 7, July 2011, Pages 484-491

The distribution of the RdlR mutation in An. funestus populations in Africa suggests extensive barriers to gene flow between populations from different regions.

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Chromosomal and environmental determinants of morphometric variation in natural populations of the malaria vector Anopheles funestus in Cameroon

June 1, 2011 - 14:29 -- Patrick Sampao
Author(s): 
Diego Ayala, Harling Caro-Riaño, Jean-Pierre Dujardin, Nil Rahola, Frederic Simard, Didier Fontenille
Reference: 
Infection, Genetics and Evolution, Volume 11, Issue 5, July 2011, Pages 940-947

Here, we report on wing morphometric variations in karyotyped specimens of this species collected throughout a wide range of eco-geographical conditions in Cameroon (Central Africa). Our results revealed strong selection on mosquito wing traits.

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Open Access | Vectorial status and insecticide resistance of Anopheles funestus from a sugar estate in southern Mozambique

February 10, 2011 - 09:30 -- Patrick Sampao
Author(s): 
Kloke R, Nhamahanga E, Hunt RH, Coetzee M
Reference: 
Parasites & Vectors 2011, 4:16 (9 February 2011)

The insecticide resistance status and role in malaria transmission of Anopheles funestus was evaluated at the Maragra Sugar Estate in southern Mozambique where an IRS vector control programme has been in operation for seven years using the carbamate insecticide bendiocarb.

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