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Published in: Trials 1/2022

Open Access 01-12-2022 | Malaria | Study protocol

Insecticide-treated eave nets and window screens for malaria control in Chalinze district, Tanzania: a study protocol for a household randomised control trial

Authors: Olukayode G. Odufuwa, Sarah Jane Moore, Zawadi Mageni Mboma, Emmanuel Mbuba, Joseph Barnabas Muganga, Jason Moore, Rose Philipo, Mohammed Ally Rashid, Rune Bosselmann, Ole Skovmand, John Bradley

Published in: Trials | Issue 1/2022

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Abstract

Background

Long-lasting insecticidal nets (LLINs) have contributed to the reduction of malaria in sub-Saharan Africa, including Tanzania. However, they rely on daily user behaviour and high coverage which is difficult to maintain. Also, insecticide resistance among malaria vector mosquitoes is contributing to reduced efficacy of control tools. To overcome these problems, we propose to evaluate a new tool for house modification, the insecticide-treated eave nets (ITENs) in combination with insecticide-treated window screens (ITWS) incorporated with dual active ingredient (dual AI) for the control of malaria.

Methods

Four hundred and fifty (450) households with intact walls, open eaves without screens or nets on the windows in Chalinze district will be eligible and recruited upon written informed consent. The households will be randomly allocated into two arms: one with ITENs and ITWS installed and the other without. Malaria parasite detection using a quantitative polymerase chain reaction (qPCR) will be conducted shortly after the long rain (June/July, 2022) as the primary outcome and shortly after the short rain (January/February, 2022) as the secondary outcome. Other secondary outcomes include clinical malaria cases, and density of malaria vectors and nuisance after the short rain and long rain. In addition, surveys will be conducted in households with ITENs and ITWS to estimate the intervention’s cost during installation, adverse effects one month after installation, and presence, fabric integrity and user acceptance six and twelve months after installation. Bioefficacy and chemical content will be evaluated twelve months after installation.

Discussion

ITENs and ITWS have been shown in Kenya to reduce indoor mosquito density. However, it is not known if indoor mosquito density reduction translates into reduction of malaria cases. Data from the study will measure the potential public health value of an additional intervention for malaria control at the household level in areas of mosquito insecticide resistance that does not require daily adherence.

Trial registration

The study is registered on ClinicalTrials.​gov.
Appendix
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Metadata
Title
Insecticide-treated eave nets and window screens for malaria control in Chalinze district, Tanzania: a study protocol for a household randomised control trial
Authors
Olukayode G. Odufuwa
Sarah Jane Moore
Zawadi Mageni Mboma
Emmanuel Mbuba
Joseph Barnabas Muganga
Jason Moore
Rose Philipo
Mohammed Ally Rashid
Rune Bosselmann
Ole Skovmand
John Bradley
Publication date
01-12-2022
Publisher
BioMed Central
Keyword
Malaria
Published in
Trials / Issue 1/2022
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/s13063-022-06408-4

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