ArticlePLoS neglected tropical diseases2020
Gravitrap deployment for adult Aedes aegypti surveillance and its impact on dengue cases.
Article in PLoS neglected tropical diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.
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Who cites it
24 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Reducing mosquito-borne disease transmission to humans: A systematic review of cluster randomised controlled studies that assess interventions other than non-targeted insecticide.PLoS neglected tropical diseases · 2021Pooled it
- Assessing Wolbachia-mediated sterility for dengue control: emulation of a cluster-randomized target trial in Singapore.Journal of travel medicine · 2024Trial
- Dengue surveillance using gravid oviposition sticky (GOS) trap and dengue non-structural 1 (NS1) antigen test in Malaysia: randomized controlled trial.Scientific reports · 2022Trial
- An improved ovitrap-based surveillance framework: facilitating cost-efficient monitoring and efficacy assessment of integrated vector management strategies for dengue outbreak control.Parasites & vectors · 2025Article
- Distribution of Larval Habitats and Efficiency of Various Trap Settings to Monitor SympatricInsects · 2025Article
- An AI-based gravitrap surveillance for spatial interaction analysis in predicting aedes risk.International journal of health geographics · 2025Article
- Influence of air pollution and climate variability on dengue in Singapore: a time-series analysis.Scientific reports · 2025Article
- COMPARING DETECTIONS OF AEDES AEGYPTI FEMALES USING THREE TYPES OF AUTOCIDAL GRAVID TRAPS.Journal of the American Mosquito Control Association · 2025Article
- Suppression of Aedes aegypti may not affect sympatric Aedes albopictus populations: findings from two years of entomological surveillance in Singapore.Scientific reports · 2025Article
- Wolbachia incompatible insect technique program optimization over large spatial scales using a process-based model of mosquito metapopulation dynamics.BMC biology · 2024Article
- Building capacity for testing sterile insect technique against Aedes-borne diseases in the Pacific: a training workshop and launch of sterile insect technique trials against Aedes aegypti and arboviral diseases.Infectious diseases of poverty · 2024Article
- Precision Prediction for Dengue Fever in Singapore: A Machine Learning Approach Incorporating Meteorological Data.Tropical medicine and infectious disease · 2024Article
- Design and Evaluation of a Sticky Attractant Trap for Intra-Domiciliary Surveillance ofInsects · 2023Article
- Singapore's 5 decades of dengue prevention and control-Implications for global dengue control.PLoS neglected tropical diseases · 2023Article
- Use of unmanned ground vehicle systems in urbanized zones: A study of vector Mosquito surveillance in Kaohsiung.PLoS neglected tropical diseases · 2023Article
- Chikungunya Virus Infection and Gonotrophic Cycle ShapeViruses · 2023Article
- Features of the urban environment associated with Aedes aegypti abundance in high-rise public apartments in Singapore: An environmental case-control study.PLoS neglected tropical diseases · 2023Article
- Article
- Knowledge, attitudes and practices of dengue prevention between dengue sustained hotspots and non-sustained hotspots in Singapore: a cross-sectional study.Scientific reports · 2022Article
- New tools for Aedes control: mass trapping.Current opinion in insect science · 2022Review
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7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
House Index, Container Index, and Breteau Index are the most commonly used indices for dengue vector surveillance. However, these larval indices are a poor proxy for measuring the adult population-which is responsible for disease transmission. Information on the adult distribution and density are important for assessing transmission risk as well as for developing effective control strategies. This study introduces a new entomological index, Gravitrap aegypti index (GAI), which estimates the adult female Aedes aegypti population in the community and presents its association with dengue cases. Gravitraps were deployed across 34 treatment sites in Singapore from September 2013 to September 2016. The GAI, derived from the Gravitrap surveillance data, was analysed to investigate the spatio-temporal patterns of the Ae. aegypti population in Singapore. The index was further categorised into low, moderate, and high-risk groups and its association with dengue cases were examined. A Before-After Control Impact analysis was performed to evaluate the epidemiology impact of Gravitrap system on dengue transmission. The Ae. aegypti population exhibits a seasonal pattern, and spatial heterogeneity in Ae. aegypti abundance was observed among treatment sites. The Ae. aegypti population was also found to be unevenly distributed among floors of an apartment block, with low floors (floors 1-4) having a higher abundance of mosquitoes trapped than mid (floors 5-8) and high (floors ≥9) floors. Areas with high GAI were shown to have higher dengue case count. Gravitrap has also demonstrated to be a good dengue control tool. The contribution of cases by treatment sites to the national numbers was lower after Gravitraps deployment. The GAI, which is of better relevance to dengue transmission risk, could be recommended as an indicator for decision making in vector control efforts, and to monitor the spatio-temporal variability of the adult Aedes population in the country. In addition, findings from this study indicate that Gravitraps can be used as a dengue control tool to reduce dengue transmission.
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