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Multiple insecticide resistance in the major malaria vector Anopheles funestus in southern Ghana: implications for malaria control

Overview of attention for article published in Parasites & Vectors, September 2016
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Title
Multiple insecticide resistance in the major malaria vector Anopheles funestus in southern Ghana: implications for malaria control
Published in
Parasites & Vectors, September 2016
DOI 10.1186/s13071-016-1787-8
Pubmed ID
Authors

Jacob M. Riveron, Michael Osae, Alexander Egyir-Yawson, Helen Irving, Sulaiman S. Ibrahim, Charles S. Wondji

Abstract

Understanding the dynamics of insecticide resistance in African malaria vectors is crucial for successful implementation of resistance management strategies in the continent. This study reports a high and multiple insecticide resistance in Anopheles funestus from southern Ghana which could compromise the Malaria Operational Plan in this country, if not tackled. Adult Anopheles mosquitoes were collected in Obuasi and Adawukwa, in southern Ghana. Plasmodium infection rates, susceptibility to the main insecticides used in public health and the molecular basis of insecticide resistance were established. An. funestus (sensu stricto) (s.s.) was the predominant mosquito species found resting inside the houses in Obuasi, while at Adawukwa it was found together with An. coluzzii. Parasite rates were high in An. funestus (s.s.) populations from both localities, with Plasmodium infection rates greater than 12.5 %. Both, An. funestus (s.s.) and An. coluzzii, from the two sites exhibited high resistance to the insecticide from various classes including the pyrethroids, carbamates and DDT, but remained fully susceptible to the organophosphates. A preliminary characterization of the underlying molecular mechanisms of resistance in An. funestus (s.s.) populations from both sites revealed that CYP6P9a, CYP6P9b, CYP6M7 and GSTe2 genes are upregulated, markedly higher in Obuasi (between 3.35 and 1.83 times) than in Adawukwa population. The frequency of L119F-GSTe2 and A296S-RDL resistance markers were also higher in Obuasi (42.5 and 68.95 % higher), compared with An. funestus (s.s.) populations from Adawukwa. These findings suggest that the similar resistance pattern observed in both An. funestus (s.s.) populations are driven by different mechanisms. Resistance to multiple insecticides in public health use is present in malaria vectors from Ghana with major resistance genes already operating in the field. This should be taken into consideration in the design of resistance management strategies to avoid operational failure.

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X Demographics

The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 128 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Indonesia 1 <1%
United Kingdom 1 <1%
United States 1 <1%
Unknown 125 98%

Demographic breakdown

Readers by professional status Count As %
Student > Master 24 19%
Student > Ph. D. Student 22 17%
Student > Bachelor 15 12%
Researcher 14 11%
Student > Postgraduate 6 5%
Other 15 12%
Unknown 32 25%
Readers by discipline Count As %
Agricultural and Biological Sciences 34 27%
Biochemistry, Genetics and Molecular Biology 22 17%
Immunology and Microbiology 9 7%
Medicine and Dentistry 8 6%
Nursing and Health Professions 5 4%
Other 16 13%
Unknown 34 27%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 17 September 2016.
All research outputs
#14,861,191
of 22,888,307 outputs
Outputs from Parasites & Vectors
#3,086
of 5,475 outputs
Outputs of similar age
#193,102
of 321,166 outputs
Outputs of similar age from Parasites & Vectors
#65
of 116 outputs
Altmetric has tracked 22,888,307 research outputs across all sources so far. This one is in the 33rd percentile – i.e., 33% of other outputs scored the same or lower than it.
So far Altmetric has tracked 5,475 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.7. This one is in the 38th percentile – i.e., 38% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 321,166 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 37th percentile – i.e., 37% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 116 others from the same source and published within six weeks on either side of this one. This one is in the 38th percentile – i.e., 38% of its contemporaries scored the same or lower than it.