Evidence map›Paper›PMID 31796068›Full record

ArticleInfectious diseases of poverty2019

High insecticide resistance in the major malaria vector Anopheles coluzzii in Chad Republic.

Sulaiman S Ibrahim, Amen N Fadel, Magellan Tchouakui, Ebai Terence, Murielle J Wondji, Micareme Tchoupo, Clement Kérah-Hinzoumbé, Samuel Wanji, Charles S Wondji

Open access · goldAbstract read
In one paragraph

Article in Infectious diseases of poverty, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.9field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 31 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 4 countries.

Sulaiman S IbrahimVector Biology Department, Liverpool School of Tropical Medicine (LSTM), Liverpool, L3 5 QA, UK. sulaimansadi.ibrahim@lstmed.ac.uk.ORCID http://orcid.org/0000-0003-0744-802X
Amen N FadelCentre for Research in Infectious Diseases (CRID), LSTM Research Unit, P.O. Box 13591, Yaoundé, Cameroon.
Magellan TchouakuiCentre for Research in Infectious Diseases (CRID), LSTM Research Unit, P.O. Box 13591, Yaoundé, Cameroon.
Ebai TerenceCentre for Research in Infectious Diseases (CRID), LSTM Research Unit, P.O. Box 13591, Yaoundé, Cameroon.
Murielle J WondjiVector Biology Department, Liverpool School of Tropical Medicine (LSTM), Liverpool, L3 5 QA, UK.
Micareme TchoupoCentre for Research in Infectious Diseases (CRID), LSTM Research Unit, P.O. Box 13591, Yaoundé, Cameroon.
Clement Kérah-HinzoumbéNational Malaria Control Program, P.O. Box 2030, N'djamena, Chad.
Samuel WanjiDepartment of Microbiology and Parasitology, University of Buea, P.O. Box 63, Buea, Cameroon.
Charles S WondjiVector Biology Department, Liverpool School of Tropical Medicine (LSTM), Liverpool, L3 5 QA, UK.
Liverpool School of Tropical Medicine · GBMinistry of Scientific Research and Innovation · CMUniversity of Buea · CMUniversity of N'Djamena · TD

Funding

Wellcome Trust 201918/Z/16/ZWellcome Trust WT201918/Z/16/Z
6 · The paper itself

Abstract

backgroundThe Sahel region of Chad Republic is a prime candidate for malaria pre-elimination. To facilitate pre-elimination efforts in this region, two populations of Anopheles coluzzii from Central Chad Republic were characterized, their insecticide resistance profile and the possible molecular mechanisms driving the resistance in the field investigated.

methodsBloodfed female Anopheles gambiae s.l. resting indoor, were collected at N'djamena and Massakory, Chad in 2018 and characterized for species composition, and infection rate was determined using the TaqMan assay. Susceptibility to various insecticides was assessed using WHO tube bioassays. Cone bioassays were conducted using various long-lasting insecticidal nets (LLINs). Results were analysed using Chi Square test. Knockdown resistance (kdr) and ace-1 markers were investigated by TaqMan genotyping.

resultsAnopheles coluzzii was the major vector found in N'djamena (100%) and Massakory (~ 94%). No Plasmodium was found in 147 bloodfed F

conclusionsMultiple resistance in An. coluzzii populations from Chad highlight challenges associated with deployment of LLINs and indoor residual spraying (IRS) in the Sahel of this country. The pyrethroid-synergists LLINs (e.g. PermaNet®3.0) and organophosphate-based IRS maybe the alternatives for malaria control in this region.

Indexed as

AnimalsAnophelesChadFemaleInsecticide ResistanceInsecticidesMalariaMosquito VectorsInsecticidesAnopheles coluzziiChadInsecticideKdrMalariaMetabolicResistanceSahel

Identifiers

PMID31796068
PMCPMC6892245
OpenAlexW2993779799

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.