Evidence map›Paper›PMID 34134775›Full record

ArticleParasites & vectors2021

Indoor residual spraying practices against Triatoma infestans in the Bolivian Chaco: contributing factors to suboptimal insecticide delivery to treated households.

Raquel Gonçalves, Rhiannon A E Logan, Hanafy M Ismail, Mark J I Paine, Caryn Bern, Orin Courtenay

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Parasites & vectors, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

6 citing papers in PubMed, 9 citations in OpenAlex.

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  6. Modeling the impact of xenointoxication in dogs to haltmedRxiv : the preprint server for health sciences · 2023
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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

6 authors at 3 institutions in 2 countries.

Raquel GonçalvesZeeman Institute and School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK.
Rhiannon A E LoganLiverpool School of Tropical Medicine, Department of Vector Biology, Faculty of Biological Sciences, Pembroke Place, Liverpool, L3 5QA, UK.
Hanafy M IsmailLiverpool School of Tropical Medicine, Department of Vector Biology, Faculty of Biological Sciences, Pembroke Place, Liverpool, L3 5QA, UK.
Mark J I PaineLiverpool School of Tropical Medicine, Department of Vector Biology, Faculty of Biological Sciences, Pembroke Place, Liverpool, L3 5QA, UK.
Caryn BernDepartment of Epidemiology and Biostatistics, School of Medicine, University of California San Francisco, San Francisco, CA, USA.
Orin CourtenayZeeman Institute and School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK. orin.courtenay@warwick.ac.uk.ORCID http://orcid.org/0000-0002-0188-6929
Liverpool School of Tropical Medicine · GBUniversity of Warwick · GBUniversity of California, San Francisco · US

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundIndoor residual spraying (IRS) of insecticides is a key method to reduce vector transmission of Trypanosoma cruzi, causing Chagas disease in a large part of South America. However, the successes of IRS in the Gran Chaco region straddling Bolivia, Argentina, and Paraguay, have not equalled those in other Southern Cone countries.

aimsThis study evaluated routine IRS practices and insecticide quality control in a typical endemic community in the Bolivian Chaco.

methodsAlpha-cypermethrin active ingredient (a.i.) captured onto filter papers fitted to sprayed wall surfaces, and in prepared spray tank solutions, were measured using an adapted Insecticide Quantification Kit (IQK™) validated against HPLC quantification methods. The data were analysed by mixed-effects negative binomial regression models to examine the delivered insecticide a.i. concentrations on filter papers in relation to the sprayed wall heights, spray coverage rates (surface area / spray time [m

resultsSubstantial variations were observed in the alpha-cypermethrin a.i. concentrations delivered; only 10.4% (50/480) of filter papers and 8.8% (5/57) of houses received the target concentration of 50 mg ± 20% a.i./m

conclusionsSuboptimal delivery of IRS is partially attributable to the insecticide physical characteristics and the need for revision of insecticide delivery methods, which includes training of IRS teams and community education to encourage compliance. The IQK™ is a necessary field-friendly tool to improve IRS quality and to facilitate health worker training and decision-making by Chagas disease vector control managers.

Indexed as

AnimalsBoliviaChagas DiseaseFamily CharacteristicsFemaleHumansInsecticidesMaleMosquito ControlMosquito VectorsPyrethrinsTriatomaTrypanosoma cruzicypermethrinInsecticidesPyrethrinsBoliviaChacoChagas diseaseDiagnosticIndoor residual sprayingInsecticide quantificationTriatoma infestansTrypanosoma cruziVector control

Identifiers

PMID34134775
PMCPMC8207695
OpenAlexW3170104445

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.