Mosquito traps designed to capture Aedes aegypti (Diptera: Culicidae) females: preliminary comparison of Adultrap, MosquiTRAP and backpack aspirator efficiency in a dengue-endemic area of Brazil

Maciel-de-Freitas, Rafael; Peres, Roberto; Alves, F. C.; Brandolini, Mauro Blanco

doi:10.1590/s0074-02762008000600016

Cited by 50 publications

(46 citation statements)

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“…Nonetheless, it is possible to aim to sample adult mosquitoes as a routine procedure with minimal additional training and resources. A number of novel sampling devices [61]–[63] offer the potential to monitor vectors during outbreaks [64] and at the spatial scale required to accurately sample populations of Ae. aegypti [65].…”

Section: Discussionmentioning

confidence: 99%

Assessing the Relationship between Vector Indices and Dengue Transmission: A Systematic Review of the Evidence

2014

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BackgroundDespite doubts about methods used and the association between vector density and dengue transmission, routine sampling of mosquito vector populations is common in dengue-endemic countries worldwide. This study examined the evidence from published studies for the existence of any quantitative relationship between vector indices and dengue cases.Methodology/Principal FindingsFrom a total of 1205 papers identified in database searches following Cochrane and PRISMA Group guidelines, 18 were included for review. Eligibility criteria included 3-month study duration and dengue case confirmation by WHO case definition and/or serology.A range of designs were seen, particularly in spatial sampling and analyses, and all but 3 were classed as weak study designs. Eleven of eighteen studies generated Stegomyia indices from combined larval and pupal data. Adult vector data were reported in only three studies. Of thirteen studies that investigated associations between vector indices and dengue cases, 4 reported positive correlations, 4 found no correlation and 5 reported ambiguous or inconclusive associations. Six out of 7 studies that measured Breteau Indices reported dengue transmission at levels below the currently accepted threshold of 5.Conclusions/SignificanceThere was little evidence of quantifiable associations between vector indices and dengue transmission that could reliably be used for outbreak prediction. This review highlighted the need for standardized sampling protocols that adequately consider dengue spatial heterogeneity. Recommendations for more appropriately designed studies include: standardized study design to elucidate the relationship between vector abundance and dengue transmission; adult mosquito sampling should be routine; single values of Breteau or other indices are not reliable universal dengue transmission thresholds; better knowledge of vector ecology is required.

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Section: Discussionmentioning

confidence: 99%

Assessing the Relationship between Vector Indices and Dengue Transmission: A Systematic Review of the Evidence

2014

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“…However, this method is labor-intensive, requires entry into private dwellings, varies among operators, and is not species-speciÞc. Sticky traps have shown to be as effective as the aspiration technique (Maciel-de-Freitas et al 2008).…”

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“…aegypti than larval surveys (Gama et al 2007) and the backpack aspirator (Maciel-de-Freitas et al 2008), but less than or equally sensitive to the ovitrap (Fávaro et al 2006, Gama et al 2007). The MosquiTRAP has been used for monitoring Ae.…”

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confidence: 99%

Development of the Gravid <I>Aedes</I> Trap for the Capture of Adult Female Container-Exploiting Mosquitoes (Diptera: Culicidae)

2014

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Monitoring dengue vector control by sampling adult Aedes aegypti (L.) recently has been used to replace both larval and pupal surveys. We have developed and evaluated the Gravid Aedes Trap (GAT) through a sequential behavioral study. The GAT does not require electricity to function, and trapped mosquitoes are identified easily during trap inspections. The GAT concept relies on visual and olfactory cues to lure gravid Ae. aegypti and an insecticide to kill trapped mosquitoes. Gravid mosquitoes are lured to a black bucket base containing oviposition attractant (infusion) and are trapped in a translucent chamber impregnated with a pyrethroid insecticide where they are killed within 3-15 min. In semifield observations, the GAT captured a significantly higher proportion of gravid mosquitoes than the double sticky ovitrap. We also demonstrated that the visual cues of the prototype GAT-LgBF (large black base bucket with a black funnel at the top of the translucent chamber) captured a significantly higher proportion of gravid mosquitoes than the other prototypes. The visual contrast created by the addition of a white lid to the top of the black funnel significantly increased the number of captured gravid mosquitoes when compared with the GAT-LgBF in semifield trials. We conclude that the GAT is more efficient in recapturing gravid Ae. aegypti when compared with sticky ovitraps. The GAT is an effective, practical, low cost, and easily transportable trap, features that are essential in large-scale monitoring programs, particularly in areas where funding is limited.

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“…Recently, this sticky trap has been used in a variety of investigations, including estimates of the size of the Ae. aegypti female population (Maciel-de-Freitas et al 2008) or the temporal distribution of Ae. aegypti populations (Honório et al 2009a), spatial evaluations and modelling of dengue vector density (Honório et al 2009b), comparative studies between MosquitoTrap ™ and other sampling methods, including larval and oviposition surveillance (Gama et al 2007, Lorenço-deOliveira et al 2008, Nasci (Fávaro et al 2008) and back-pack aspirators (Maciel-de-Freitas et al 2006), and monitoring of Ae.…”

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confidence: 99%

Field optimisation of MosquiTRAP sampling for monitoring Aedes aegypti Linnaeus (Diptera: Culicidae)

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Mem. Inst. Oswaldo Cruz

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Mosquito traps designed to capture Aedes aegypti (Diptera: Culicidae) females: preliminary comparison of Adultrap, MosquiTRAP and backpack aspirator efficiency in a dengue-endemic area of Brazil

Cited by 50 publications

References 8 publications

Assessing the Relationship between Vector Indices and Dengue Transmission: A Systematic Review of the Evidence

Assessing the Relationship between Vector Indices and Dengue Transmission: A Systematic Review of the Evidence

Development of the Gravid <I>Aedes</I> Trap for the Capture of Adult Female Container-Exploiting Mosquitoes (Diptera: Culicidae)

Field optimisation of MosquiTRAP sampling for monitoring Aedes aegypti Linnaeus (Diptera: Culicidae)

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