Forecasting the relative abundance of Aedes vector populations to enhance situational awareness for mosquito control operations

Paulo C Ventura, Allisandra G Kummer, André B B Wilke, Jagadeesh Chitturi, Megan D Hill, Chalmers Vasquez, Isik Unlu, John-Paul Mutebi, Susanne Kluh, Steve Vetrone, Dan Damian, John Townsend, Maria Litvinova and Marco Ajelli

PLOS Neglected Tropical Diseases, 2024, vol. 18, issue 11, 1-17

Abstract: Aedes-borne diseases represent a major public health threat and mosquito control operations represent a key line of defense. Improving the real-time awareness of mosquito control authorities by providing reliable forecasts of the relative abundance of mosquito vectors could greatly enhance control efforts. To this aim, we developed an analytical tool that forecasts Aedes aegypti relative abundance 1 to 4 weeks ahead. Forecasts were validated against mosquito surveillance data (2,760 data points) collected over multiple years in four jurisdictions in the US. The symmetric absolute percentage error was in the range 0.43–0.69, and the 90% interquantile range of the forecasts had a coverage of 83–92%. Our forecasts consistently outperformed a reference “naïve” model for all analyzed study sites, forecasting horizon, and for periods with medium/high Ae. aegypti activity. The developed tool can be instrumental to address the need for evidence-based decision making.Author summary: Mosquito control authorities have faced major emergencies, but they lacked access to analytical tools for guiding the planning of mosquito control strategies and outbreak response efforts. This deficiency has not only impeded their situational awareness but has also hindered their ability to make informed decisions regarding intervention planning to respond to Aedes-borne disease outbreaks. Our study addresses this need by developing an analytical tool that forecasts Aedes aegypti relative abundance 1 to 4 weeks ahead. Our forecasts were consistently accurate and precise for all analyzed study sites, forecasting horizon, and for periods with medium/high Ae. Aegypti activity. Our results indicate that our analytical tool can be used to guide mosquito control operations, ultimately reducing the risk of Aedes-borne disease outbreaks.

Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pntd00:0012671

DOI: 10.1371/journal.pntd.0012671

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