anopheles gambiae s.l

Mosquito midgut Enterobacter cloacae and Serratia marcescens affect the fitness of adult female Anopheles gambiae s.l.

Tags:

plasmodium, serratia marcescens, anopheles gambiae s.l

Author(s):

Ezemuoka LC, Akorli EA, Aboagye-Antwi F, Akorli J

Reference:

PLoS One. 2020 Sep 18;15(9):e0238931

Some bacteria species found in the mosquito midgut have demonstrated their role in interrupting the development of Plasmodium within the midgut of the Anopheles mosquito and have been identified as potential candidates for novel bacteria-mediated disease control. However, to use these bacteria successfully in biocontrol mechanisms their effect on the fitness of the vector into which they have been introduced has to be evaluated.

Insecticide resistance profiles of Anopheles gambiae s.l. in Togo and genetic mechanisms involved, during 3-year survey: is there any need for resistance management?

Tags:

anopheles gambiae s.l

Author(s):

Adjovi D. Amoudji, Koffi M. Ahadji-Dabla, Guillaume Koffivi Ketoh, et al.

Reference:

Malaria Journal 2019 18:177, 22 May 2019

Malaria, one of the world’s greatest public health challenges, is an endemic disease with stable transmission in Togo. Combating malaria requires an effective vector control. This study provides temporal data on insecticide resistance status in the major malaria vector Anopheles gambiae sensu lato (s.l.) from Togo.

Country:

Togo

NOT Open Access | Mapping potential Anopheles gambiae s.l. larval distribution using remotely sensed climatic and environmental variables in Baringo, Kenya

Tags:

anopheles gambiae s.l, plasmodium falciparum

Author(s):

J. A. Amadi, G. O. Ong'amo, D. O. Olago, S. O. Oriaso, I. K. Nyamongo, B. B. A. Estambale

Reference:

Medical and Veterinary Entomology Volume32, Issue4 December 2018 Pages 417-426

Anopheles gambiae s.l. (Diptera: Culicidae) is responsible for the transmission of the devastating Plasmodium falciparum (Haemosporida: Plasmodiidae) strain of malaria in Africa.

Continent:

Africa

Country:

Kenya

Investigating insecticide resistance and knock-down resistance (kdr) mutation in Dielmo, Senegal, an area under long lasting insecticidal-treated nets universal coverage for 10 years

Tags:

anopheles gambiae s.l

Author(s):

Omar Thiaw, Souleymane Doucouré, Seynabou Sougoufara, Charles Bouganali, Lassana Konaté, Nafissatou Diagne, Ousmane Faye and Cheikh Sokhna

Reference:

Malaria Journal 2018 17:123, 22 March 2018

The co-occurrence of 1014F and 1014S alleles and the probable involvement of GSTs enzymes in insecticide resistance in An. gambiae s.l. should prompt the local vector programme to implement non-pyrethroid/DDT insecticides alternatives.

Medical Treatment:

long-lasting insecticide-treated nets (LLINs)

Not Open Access | Effect of naturally occurring Wolbachia in Anopheles gambiae s.l. mosquitoes from Mali on Plasmodium falciparum malaria transmission

Tags:

anopheles gambiae s.l, plasmodium falciparum

Author(s):

Fabio M. Gomes, Bretta L. Hixson, Carolina Barillas-Mury, et al.

Reference:

PNAS November 21, 2017 vol. 114 no. 47 12566-12571

A naturally occurring Wolbachia strain (wAnga-Mali) was identified in mosquitoes of the Anopheles gambiae complex collected in the Malian villages of Dangassa and Kenieroba.

Country:

Mali

Morphological changes in the spiracles of Anopheles gambiae s.l (Diptera) as a response to the dry season conditions in Burkina Faso (West Africa)

Tags:

malaria, anopheles gambiae s.l

Author(s):

Mamai W, Mouline K, Parvy J, Le Lannic J, Dabiré K, Ouédraogo G, Renault D, Simard F

Reference:

Parasites & Vectors 2016, 9 :11 (7 January 2016)

Here, we explored morphological changes triggered by exposure to dry season conditions in An. gambiae s.l. mosquitoes by comparing females reared in climatic chambers reflecting environmental conditions found in mosquito habitats during the rainy and dry seasons in a savannah area of Burkina Faso (West Africa).

The structure of a prophenoloxidase (PPO) from Anopheles gambiae provides new insights into the mechanism of PPO activation

Tags:

malaria, plasmodium falciparum, mosquitos, anopheles gambiae s.l

Author(s):

Hu Y, Wang Y, Deng J, Jiang H

Reference:

BMC Biology 2016, 14 :2 (5 January 2016)

Our data offered a new model for PPO activation at the molecular level, which differs from the canonical mechanism that demands withdrawing a blocking phenylalanine residue from the previously deemed substrate-binding site. This study provides new insights into the mechanisms of PPO activation and enzymatic catalysis of PO.

Early biting and insecticide resistance in the malaria vector Anopheles might compromise the effectiveness of vector control intervention in Southwestern Uganda

Tags:

anopheles gambiae s.l, malaria

Author(s):

Ojuka P, Boum Y, Denoeud-Ndam L, Nabasumba C, Muller Y, Okia M, Mwanga-Amumpaire J, Debeaudrap P, Protopopoff N, Etard J

Reference:

Malaria Journal 2015, 14 :148 (9 April 2015)

Background

Southwestern Uganda has high malaria heterogeneity despite moderate vector control and other interventions. Moreover, the early biting transmission and increased resistance to insecticides might compromise strategies relying on vector control. Consequently, monitoring of vector behaviour and insecticide efficacy is needed to assess the effectiveness of strategies aiming at malaria control. This eventually led to an entomological survey in two villages with high malaria prevalence in this region.

Methods

Country:

Uganda

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