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anopheles arabiensis

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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Using mid-infrared spectroscopy and supervised machine-learning to identify vertebrate blood meals in the malaria vector, Anopheles arabiensis

June 3, 2019 - 15:21 -- Open Access
Author(s): 
Emmanuel P. Mwanga, Salum A. Mapua, Fredros O. Okumu, et al.
Reference: 
Malaria Journal 2019 18:187, 30 May 2019

The propensity of different Anopheles mosquitoes to bite humans instead of other vertebrates influences their capacity to transmit pathogens to humans. Unfortunately, determining proportions of mosquitoes that have fed on humans, i.e. Human Blood Index (HBI), currently requires expensive and time-consuming laboratory procedures involving enzyme-linked immunosorbent assays (ELISA) or polymerase chain reactions (PCR). Here, mid-infrared (MIR) spectroscopy and supervised machine learning are used to accurately distinguish between vertebrate blood meals in guts of malaria mosquitoes, without any molecular techniques.

Detection of alleles associated with resistance to chemical insecticide in the malaria vector Anopheles arabiensis in Santiago, Cabo Verde

April 8, 2019 - 16:17 -- Open Access
Author(s): 
Derciliano Lopes da Cruz, Marcelo Henrique Santos Paiva, Duschinka Ribeiro Duarte Guedes, Joana Alves, Lara Ferrero Gómez and Constância Flávia Junqueira Ayres
Reference: 
Malaria Journal 2019 18:120, 5 April 2019

This is the first study to investigate the circulation of insecticide resistance alleles in An. arabiensis from Cabo Verde.

Evaluation of toxicity of clothianidin (neonicotinoid) and chlorfenapyr (pyrrole) insecticides and cross-resistance to other public health insecticides in Anopheles arabiensis from Ethiopia

February 26, 2019 - 15:22 -- Open Access
Author(s): 
Kendra Dagg, Seth Irish, Ryan E. Wiegand, Josephat Shililu, Delenasaw Yewhalaw and Louisa A. Messenger
Reference: 
Malaria Journal 2019 18:49, 22 February 2019

The putative diagnostic doses of clothianidin and chlorfenapyr are appropriate for monitoring resistance in An. arabiensis from Ethiopia.

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Sweet attraction: sugarcane pollen-associated volatiles attract gravid Anopheles arabiensis

February 22, 2018 - 15:59 -- Open Access
Author(s): 
Betelehem Wondwosen, Göran Birgersson, Habte Tekie, Baldwyn Torto, Rickard Ignell and Sharon R. Hill
Reference: 
Malaria Journal 2018 17:90, 21 February 2018

The attraction of gravid females to sugarcane pollen volatiles demonstrated in this study, together with the previously found grass-associated volatiles, raise the potential of developing a bioactive chimeric blend to attract gravid malaria mosquitoes.

Impact of insecticide resistance in Anopheles arabiensis on malaria incidence and prevalence in Sudan and the costs of mitigation

December 27, 2017 - 12:52 -- Open Access
Author(s): 
Hmooda Toto Kafy, Bashir Adam Ismail, Immo Kleinschmidt, et al.
Reference: 
PNAS December 26, 2017 vol. 114 no. 52 E11267-E11275

Insecticide-based interventions have contributed to ∼78% of the reduction in the malaria burden in sub-Saharan Africa since 2000.

Does mosquito mass-rearing produce an inferior mosquito?

September 11, 2017 - 15:50 -- Open Access
Author(s): 
Dieudonné D. Soma, Hamidou Maïga, Jeremie R. L. Gilles, et al.
Reference: 
Malaria Journal 2017 16:357, 7 September 2017

The results showed that the FAO/IAEA mass-rearing process did not affect mosquito life history parameters or the mating competitiveness of males.

The development of an ivermectin-based attractive toxic sugar bait (ATSB) to target Anopheles arabiensis

August 19, 2017 - 16:06 -- Open Access
Author(s): 
Frank Chelestino Tenywa, Athumani Kambagha, Adam Saddler and Marta Ferreira Maia
Reference: 
Malaria Journal 2017 16:338, 15 August 2017

Ivermectin is an effective insecticide for use in sugar baits.

Explaining variation in adult Anopheles indoor resting abundance: the relative effects of larval habitat proximity and insecticide-treated bed net use

July 18, 2017 - 15:14 -- Open Access
Author(s): 
Robert S. McCann, Joseph P. Messina, David W. MacFarlane, M. Nabie Bayoh, John E. Gimnig, Emanuele Giorgi and Edward D. Walker
Reference: 
Malaria Journal 2017 16:288, 17 July 2017

Variation in the abundance of indoor-resting Anopheles in rural houses of western Kenya varies with clearly identifiable factors.

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Host-seeking activity of a Tanzanian population of Anopheles arabiensis at an insecticide treated bed net

July 5, 2017 - 14:25 -- Open Access
Author(s): 
Josephine E. A. Parker, Natalia C. Angarita Jaimes, Katherine Gleave, Fabian Mashauri, Mayumi Abe, Jackline Martine, Catherine E. Towers, David Towers and Philip J. McCall
Reference: 
Malaria Journal 2017 16:270, 4 July 2017

The study has demonstrated the potential for detailed investigations of behaviour of wild mosquito populations under field conditions.

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