The useful life of bed nets for malaria control in Tanzania: Attrition, Bioefficacy, Chemistry, Durability and insecticide Resistance

The useful life of bed nets for malaria control in Tanzania: Attrition, Bioefficacy, Chemistry, Durability and insecticide Resistance

Objectives

This study investigates LLIN effectiveness by measuring attrition, bioefficacy, chemical content and physical degradation in Tanzania.

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Principal Investigator (PI)

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Partner(s)

Abstract

Long-Lasting Insecticidal Nets (LLINs) are the current first line choice in malaria vector control in sub-Saharan Africa, with most countries adopting universal coverage campaigns with free or subsidised nets. However, there is only limited knowledge from few countries of the effective life of LLINs under user conditions, an essential parameter for determining the operational and cost-effectiveness of this strategy. We will use a two-stage approach: Firstly, LLINs from recent net campaigns will be evaluated retrospectively. The sampled households will then be provided with one of three leading LLIN products and followed up in a prospective study to compare the performance of the LLIN brands in vivo. We will also develop a GIS-based network to understand potential spatial reasons for net loss and deterioration; to monitor insecticide resistance and to show malaria incidence data collected from local health centres and national surveys. This is the first team to conduct a geographically representative study of LLIN use and efficacy using WHO-recommended methodologies and large sample sizes determined by robust statistical methods with independent data quality assurance. The data collected will be of importance to policy makers and vector control specialists both in Tanzania and the SSA region to inform best practice for the maintenance of high and cost-effective coverage to maximise current gains in malaria control.

The useful life of bednets for malaria control in Tanzania: Attrition, Bioefficacy, Chemistry, Durability and insecticide Resistance

The useful life of bednets for malaria control in Tanzania (IHI)

Key facts

  • Dates
    2012 to 2017
    Funding amount
    $2,867,740
    Funding information
    16 million NOK
    Country
    • Tanzania, United Republic of

MESA tags

  • Methodology
    Product development & clinical research
    Theme(s)
    Tools for elimination