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anopheles gambiae s.l.

Partial indoor residual spraying with pirimiphos-methyl as an effective and cost-saving measure for the control of Anopheles gambiae s.l. in northern Ghana

September 15, 2021 - 11:52 -- Open Access
Author(s): 
Coleman S, Yihdego Y, Seyoum A, et al.
Reference: 
Sci Rep. 2021 Sep 10;11(1):18055

The scale up of indoor residual spraying (IRS) and insecticide treated nets have contributed significantly to global reductions in malaria prevalence over the last two decades. However, widespread pyrethroid resistance has necessitated the use of new and more expensive insecticides for IRS. Partial IRS with pirimiphos-methyl in experimental huts and houses in a village-wide trial was evaluated against Anopheles gambiae s.l. in northern Ghana.

Evaluation of Yahe() and Panda() 2.0 long-lasting insecticidal nets against wild pyrethroid-resistant Anopheles gambiae s.l. from Cote d'Ivoire: an experimental hut trial

July 6, 2021 - 14:23 -- Open Access
Author(s): 
Clegban CY, Camara S, Koffi AA, Ahoua Alou LP, Kabran Kouame JP, Koffi AF, Kouassi PK, Moiroux N, Pennetier C
Reference: 
Parasit Vectors. 2021 Jul 1;14(1):347

Long-lasting insecticidal nets (LLINs) have played an important role in reducing the global malaria burden since 2000. They are a core prevention tool used widely by people at risk of malaria. The Vector Control Prequalification mechanism of the Word Health Organization (WHO-Vector Control PQ) established the testing and evaluation guidelines for LLINs before registration for public use. In the present study, two new brands of deltamethrin-impregnated nets (Yahe® LN and Panda® Net 2.0) were evaluated in an experimental hut against wild pyrethroid-resistant Anopheles gambiae s.l. in M’Bé nearby Bouaké, central Côte d’Ivoire.

NOT Open Access | Diversity of Anopheles Gambiae s.l., Giles (Diptera: Culicidae) Larval Habitats in Urban Areas and Malaria Transmission in Bouake, Cote d'Ivoire

June 16, 2021 - 15:16 -- NOT Open Access
Author(s): 
Adja AM, Zoh DD, Sagna AB, Kpan DMS, Guindo-Coulibaly N, Yapi A, Chandre F
Reference: 
Vector Borne Zoonotic Dis. 2021 Jun 14

Malaria vectors are supposedly uncommon in urban areas owing to the lack of suitable breeding sites for their development. However, the maintenance in urban areas of traditional rural practices along with humanitarian crisis can create favorable conditions for malaria transmission. This study aimed to provide relevant entomological data on the risk of malaria transmission in the city of Bouaké, after the military-political crisis from 2002 to 2011 in Côte d'Ivoire.

Intensity and mechanisms of deltamethrin and permethrin resistance in Anopheles gambiae s.l. populations in southern Benin

April 22, 2021 - 08:50 -- Open Access
Author(s): 
Sagbohan HW, Kpanou CD, Akogbeto M, et al.
Reference: 
Parasit Vectors. 2021 Apr 14;14(1):202

Insecticide resistance is threatening the effectiveness of efforts to control malaria vectors in Benin. This study explores the levels and mechanisms of insecticide resistance in An. gambiae s.l. to pyrethroids.

Insecticide resistance status in Anopheles gambiae (s.l.) in coastal Kenya

April 22, 2021 - 08:26 -- Open Access
Author(s): 
Munywoki DN, Kokwaro ED, Mwangangi JM, Muturi EJ, Mbogo CM
Reference: 
Parasit Vectors. 2021 Apr 20;14(1):207

The rapid and widespread evolution of insecticide resistance has emerged as one of the major challenges facing malaria control programs in sub-Saharan Africa. Understanding the insecticide resistance status of mosquito populations and the underlying mechanisms of insecticide resistance can inform the development of effective and site-specific strategies for resistance prevention and management. The aim of this study was to investigate the insecticide resistance status of Anopheles gambiae (s.l.) mosquitoes from coastal Kenya.

Survivorship of Anopheles gambiae sensu lato in irrigated sugarcane plantation scheme in Ethiopia

March 10, 2021 - 13:18 -- Open Access
Author(s): 
Hawaria D, Kibret S, Demissew A, Tsegaye A, Bitew D, Yan G, Yewhalaw D
Reference: 
Parasit Vectors. 2021 Mar 6;14(1):142

To ensure food security, sub-Saharan Africa has initiated massive water resource development projects, such as irrigated agriculture, in recent years. However, such environmental modifications affect the survivorship and development of mosquitoes, which are vectors of different diseases. This study aimed at determining the effects of irrigation practices on development and survivorship of Anopheles gambiae s.l. in Ethiopia.

Insecticide resistance status of malaria vectors Anopheles gambiae (s.l.) of southwest Burkina Faso and residual efficacy of indoor residual spraying with microencapsulated pirimiphos-methyl insecticide

January 20, 2021 - 06:07 -- Open Access
Author(s): 
Soma DD, Zogo B, Dabiré RK, et al.
Reference: 
Parasit Vectors. 2021 Jan 18;14(1):58

The rapid spread of insecticide resistance in malaria vectors and the rebound in malaria cases observed recently in some endemic areas underscore the urgent need to evaluate and deploy new effective control interventions. A randomized control trial (RCT) was conducted with the aim to investigate the benefit of deploying complementary strategies, including indoor residual spraying (IRS) with pirimiphos-methyl in addition to long-lasting insecticidal nets (LLINs) in Diébougou, southwest Burkina Faso.

NOT Open Access | Using pastoralist community knowledge to locate and treat dry-season mosquito breeding habitats with pyriproxyfen to control Anopheles gambiae s.l. and Anopheles funestus s.l. in rural Tanzania

January 12, 2021 - 14:35 -- NOT Open Access
Author(s): 
Lupenza ET, Kihonda J, Limwagu AJ, Ngowo HS, Sumaye RD, Lwetoijera DW
Reference: 
Parasitol Res. 2021 Jan 6

Fundamentally, larviciding with pyriproxyfen (PPF) has potential to complement Long Lasting Insecticide Nets (LLINs) and indoor residual sprays (IRS) in settings where resistance to pyrethroids and residual malaria transmission exist. In this study, we evaluated the field effectiveness of larviciding using PPF to reduce dry season productivity of mosquito breeding habitats that were located by pastoralists within the study area.

The Effects of High-Altitude Windborne Migration on Survival, Oviposition, and Blood-Feeding of the African Malaria Mosquito, Anopheles gambiae s.l. (Diptera: Culicidae)

July 16, 2020 - 07:53 -- Open Access
Author(s): 
Sanogo ZL, Yaro AS, Dao A, Diallo M, Yossi O, Samaké D, Krajacich BJ, Faiman R, Lehmann T
Reference: 
J Med Entomol. 2020 Jul 15:tjaa137

Recent results of high-altitude windborne mosquito migration raised questions about the viability of these mosquitoes despite ample evidence that many insect species, including other dipterans, have been known to migrate regularly over tens or hundreds of kilometers on high-altitude winds and retain their viability. To address these concerns, we subjected wild Anopheles gambiae s.l.

Resistance status of Anopheles gambiae s.l. to insecticides following the 2011 mass distribution campaign of long-lasting insecticidal nets (LLINs) in the Plateau Department, south-eastern Benin

January 20, 2020 - 15:50 -- Open Access
Author(s): 
Arthur Sovi, Renaud Govoétchan, Martin Codjo Akogbeto, et al.
Reference: 
Malaria Journal 2020 19:26, 15 January 2020

In 2011, Benin’s National Malaria Control Programme (NMCP) organized a nationwide mass distribution campaign of LLINs throughout the country. Following this intervention, it was important to assess whether the level of susceptibility of malaria vectors to insecticides had remained the same as compared to the pre-intervention period. The current study investigated this.

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