Modifying the biogents sentinel trap to increase the longevity of captured Aedes aegypti

Timmins, Daniel R., Staunton, Kyran M., Meyer, Dagmar B., Townsend, Michael, Paton, Christopher J., Ramirez, Ana L., and Ritchie, Scott A. (2018) Modifying the biogents sentinel trap to increase the longevity of captured Aedes aegypti. Journal of Medical Entomology, 55 (6). pp. 1638-1641.

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Abstract

Aedes aegypti (L.) (Diptera: Culicidae) is a vector of viruses causing dengue, Zika, chikungunya, and yellow fever and subsequently pose a significant global threat to public health. While sampling live mosquitoes is useful for surveillance purposes, most traps targeting Aedes kill captured mosquitoes. The Biogents Sentinel (BGS) trap, the gold standard for capturing Ae. aegypti, is one such trap. In our study, we modified the BGS trap to increase the survival of captured Ae. aegypti by replacing the trap’s catch bag with a catch pot that protects mosquitoes from desiccation by airflow. A sucrose-soaked sponge or nucleic acid preservative card can also be placed inside the pot to enhance mosquito survival and augment arbovirus detection. These modifications to the BGS significantly increased the longevity of mosquitoes captured with weekly survivals of 93% in a semifield structure and 86% in the field. These high survival rates resulted in 3.5 times more alive Ae. aegypti captured weekly in the modified BGS compared to the original BGS, despite 40% lower overall catch rates. These cheap and simple trap modifications facilitate easier specimen identification as well as experiments requiring live field-collected samples such as virus detection from mosquito saliva and excreta.

Item ID: 54904
Item Type: Article (Research - C1)
ISSN: 1938-2928
Keywords: Biogents Sentinel, Aedes aegypti, dengue, Zika, mosquito trap, alive
Copyright Information: © The Author(s) 2018. Published by Oxford University Press on behalf of Entomological Society of A
Funders: SIT Study Abroad, National Health and Medical Research Council (NHMRC)
Projects and Grants: NHMRC 1044698
Date Deposited: 09 Oct 2018 01:58
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1117 Public Health and Health Services > 111799 Public Health and Health Services not elsewhere classified @ 100%
SEO Codes: 92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920404 Disease Distribution and Transmission (incl. Surveillance and Response) @ 100%
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