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Benin

Prevalence and clinical impact of malaria infections detected with a highly sensitive HRP2 rapid diagnostic test in Beninese pregnant women

May 25, 2020 - 08:47 -- Open Access
Author(s): 
Valérie Briand, Gilles Cottrell, Nadine Fievet, et al.
Reference: 
Malaria Journal 2020 19:188, 24 May 2020

While sub-microscopic malarial infections are frequent and potentially deleterious during pregnancy, routine molecular detection is still not feasible. This study aimed to assess the performance of a Histidine Rich Protein 2 (HRP2)-based ultrasensitive rapid diagnostic test (uRDT, Alere Malaria Ag Pf) for the detection of infections of low parasite density in pregnant women.

A preliminary analysis on the effect of copper on Anopheles coluzzii insecticide resistance in vegetable farms in Benin

April 15, 2020 - 14:23 -- Open Access
Author(s): 
Talom AD, Essoung MA, Gbankoto A, Tchigossou G, Akoton R, Sahabi BBA, Atoyebi SM, Fotso Kuate A, Verspoor RL, Tamò M, Tchuinkam T, Lehman GL, Lines J, Wondji CS, Djouaka R
Reference: 
Sci Rep. 2020 Apr 14;10(1):6392

The use of agrochemicals in vegetable production could influence the selection for insecticide resistance in malaria vectors. Unfortunately, there is a dearth of information on the potential contribution of agrochemicals to insecticide resistance in Anopheles mosquitoes breeding on vegetable farms in southern Benin.

Not Open Access | "Dual-gene" malaria-resistance: Therapeutically-rational exchange (T-REX) of group-O sickle trait and group-O C-trait red blood cells can be evaluated in Benin and Nigeria

February 13, 2020 - 15:00 -- NOT Open Access
Author(s): 
Jajosky RP, Jajosky AN, Jajosky PG
Reference: 
Transfus Apher Sci. 2020 Jan 27:102733

Using indicators of disease severity, clinicians can predict which Plasmodium falciparum (Pf) malaria patients being treated with artesunate or quinine are likely to die despite these drugs. Effective "rescue adjuncts" are needed when drugs alone are inadequate. "Therapeutically-rational exchange" (T-REX) of special malaria-resistant red blood cells (RBCs) has been proposed to optimize adjunctive exchange transfusion.

Physical integrity and survivorship of long-lasting insecticidal nets distributed to households of the same socio-cultural community in Benin, West Africa

February 10, 2020 - 16:05 -- Open Access
Author(s): 
Idelphonse B. Ahogni, Albert S. Salako, Bruno Akinro, Arthur Sovi, Virgile Gnanguenon, Roseric Azondekon, Jean F. Dagnon, Pamela Akogbeto, Filémon Tokponon and Martin C. Akogbeto
Reference: 
Malaria Journal 2020 19:58, 4 February 2020

Long-lasting insecticidal nets (LLINs) are designed to survive and sustain their physical barrier for 3 years in household conditions. However, studies have shown that most of these nets are usually torn or no longer present in the households in less than 3 years. This study was initiated in Benin to compare the survivorship and physical integrity of seven types of LLINs in a same socio-geographic area.

Lessons learned, challenges and outlooks for decision-making after a decade of experience monitoring the impact of indoor residual spraying in Benin, West Africa

February 3, 2020 - 16:31 -- Open Access
Author(s): 
Martin C. Akogbéto, Fortuné Dagnon, Germain G. Padonou, et al.
Reference: 
Malaria Journal 2020 19:45, 28 January 2020

Since 2008, Indoor Residual Spraying (IRS) has been performed in Benin in 19 districts, including 4 in southern Benin, 9 in Atacora, and 8 in Atacora, Alibori and Donga in northern Benin. However, Benin still struggles with questions about IRS cost–benefit and epidemiological impact. Lessons learned and challenges from 10 years of IRS in Benin to be shared with the stakeholders involved in vector control implementation for decision-making.

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.

Efficacy of Actellic 300 CS-based indoor residual spraying on key entomological indicators of malaria transmission in Alibori and Donga, two regions of northern Benin

January 14, 2020 - 17:01 -- Open Access
Author(s): 
Salako AS, Dagnon F, Sovi A, Padonou GG, Aïkpon R, Ahogni I, Syme T, Govoétchan R, Sagbohan H, Sominahouin AA, Akinro B, Iyikirenga L, Agossa F, Akogbeto MC
Reference: 
Parasites & Vectors 12, 612 (2019)

The current study shows the results of three years of IRS entomological monitoring (2016, before intervention; 2017 and 2018, after intervention) performed in Alibori and Donga, northern Benin.

Upsurge of malaria transmission after indoor residual spraying withdrawal in Atacora region in Benin, West Africa

January 7, 2020 - 14:52 -- Open Access
Author(s): 
Rock Yves Aïkpon, Gil Padonou, Martin Akogbéto, et al.
Reference: 
Malaria Journal 2020 19:3, 3 January 2020

In Benin, malaria vector control mostly relies on long-lasting, insecticidal-treated bed nets (LLINs) and indoor residual spraying (IRS) operations. From 2011 to 2016, an IRS programme has been implemented in Atacora region. However, in 2017 the programme was withdrawn from two other regions in the northern part of the country, with hopes that gains would be relatively sustained because of the seasonality of malaria transmission. What would be the vulnerability of populations to malaria after the withdrawal of IRS?

Pesticides and the evolution of the genetic structure of Anopheles coluzzii populations in some localities in Benin (West Africa)

December 10, 2019 - 10:55 -- Open Access
Author(s): 
Fassinou AJYH, Koukpo CZ, OSezonlin M, et al.
Reference: 
Malar J. 2019 Dec 5; 18(1):407

Changes in the natural habitats of insect groups are determined the genetic polymorphisms between individuals. The objective of this study was to establish the genetic structure of the Anopheles coluzzii populations in four localities of Benin.

Chemical composition and insecticidal activity of plant essential oils from Benin against Anopheles gambiae (Giles)

December 11, 2013 - 16:21 -- Open Access
Author(s): 
Bossou AD, Mangelinckx S, Yedomonhan H, Boko PM, Akogbeto MC, De Kimpe N, Avlessi F, Sohounhloue DC
Reference: 
Parasites & Vectors 2013, 6 :337 (3 December 2013)

Background

Insecticide resistance in sub-Saharan Africa and especially in Benin is a major public health issue hindering the control of the malaria vectors. Each Anopheles species has developed a resistance to one or several classes of the insecticides currently in use in the field. Therefore, it is urgent to find alternative compounds to conquer the vector. In this study, the efficacies of essential oils of nine plant species, which are traditionally used to avoid mosquito bites in Benin, were investigated.

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