Evidence map›Paper›PMID 39289705›Full record

ArticleMalaria journal2024

The impact of Bacillus thuringiensis var. israelensis (Vectobac

Dunia Munyakanage, Elias Niyituma, Alphonse Mutabazi, Xavier Misago, Clarisse Musanabaganwa, Eric Remera, Eric Rutayisire, Mamy Muziga Ingabire, Silas Majambere, Aimable Mbituyumuremyi and 4 more

Abstract read
In one paragraph

Article in Malaria journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. NativeJournal of tropical medicine · 2026
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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

14 authors.

Dunia MunyakanageMalaria and Other Parasitic Diseases Division of Rwanda Biomedical Center, Ministry of Health, Kigali, Rwanda.
Elias NiyitumaMalaria and Other Parasitic Diseases Division of Rwanda Biomedical Center, Ministry of Health, Kigali, Rwanda.
Alphonse MutabaziMalaria and Other Parasitic Diseases Division of Rwanda Biomedical Center, Ministry of Health, Kigali, Rwanda.
Xavier MisagoMalaria and Other Parasitic Diseases Division of Rwanda Biomedical Center, Ministry of Health, Kigali, Rwanda.
Clarisse MusanabaganwaMalaria and Other Parasitic Diseases Division of Rwanda Biomedical Center, Ministry of Health, Kigali, Rwanda.
Eric RemeraMalaria and Other Parasitic Diseases Division of Rwanda Biomedical Center, Ministry of Health, Kigali, Rwanda.
Eric RutayisireCharis Unmanned Aerial Solutions Ltd, Kigali, Rwanda.
Mamy Muziga IngabireCharis Unmanned Aerial Solutions Ltd, Kigali, Rwanda.
Silas MajambereValent BioSciences Corporation, Illinois, USA.
Aimable MbituyumuremyiMalaria and Other Parasitic Diseases Division of Rwanda Biomedical Center, Ministry of Health, Kigali, Rwanda.
Mathew Piero NgugiDepartment of Zoological Sciences, Kenyatta University, Nairobi, Kenya.
Elizabeth KokwaroDepartment of Zoological Sciences, Kenyatta University, Nairobi, Kenya.
Emmanuel HakizimanaMalaria and Other Parasitic Diseases Division of Rwanda Biomedical Center, Ministry of Health, Kigali, Rwanda. ehakizimana@gmail.com.
Claude Mambo MuvunyiMalaria and Other Parasitic Diseases Division of Rwanda Biomedical Center, Ministry of Health, Kigali, Rwanda.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe core vector control tools used to reduce malaria prevalence are currently long-lasting insecticidal nets (LLINs), and indoor residual spraying (IRS). These interventions are hindered by insecticide resistance and behavioural adaptation by malaria vectors. Thus, for effective interruption of malaria transmission, there is a need to develop novel vector control interventions and technologies to address the above challenges. Larviciding using drones was experimented as an innovative tool that could complement existing indoor interventions to control malaria.

methodsA non-randomized larviciding trial was carried out in irrigated rice fields in sub-urban Kigali, Rwanda. Potential mosquito larval habitats in study sites were mapped and subsequently sprayed using multirotor drones. Application of Bacillus thuringiensis var. israelensis (Bti) (Vectobac

resultsThe abundance of all-species mosquito larvae, Anopheles larvae and all-species pupae declined by 68.1%, 74.6% and 99.6%, respectively. Larval density was reduced by 93.3% for total larvae, 95.3% for the Anopheles larvae and 61.9% for pupae. The total adult mosquitoes and Anopheles gambiae sensu lato collected using CDC-Light trap declined by 60.6% and 80% respectively. Malaria incidence also declined significantly between intervention and control sites (U = 20, z = - 2.268, p = 0.023).

conclusionsThe larviciding using drone technology implemented in Rwanda demonstrated a substantial reduction in abundance and density of mosquito larvae and, concomitant decline in adult mosquito populations and malaria incidences in villages contingent to the treatment sites. The scaling up of larval source management (LSM) has to be integrated in malaria programmes in targeted areas of malaria transmission in order to enhance the gains in malaria control.

Indexed as

AnophelesBacillus thuringiensisLarvaMalariaMosquito ControlMosquito VectorsAnimalsFemaleHumansInsecticidesMaleOryzaPest Control, BiologicalRwandaInsecticidesBacillus thuringiensisDronesMalariaMosquitoesRice fieldsRwanda

Identifiers

PMID39289705
PMCPMC11407014

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.