Improved aedes /dengue field surveillance using Gravid Oviposition Sticky trap and dengue NS1 tests: Epidemiological, entomological outcomes and community acceptance

Liew, Jonathan Wee Kent and Selvarajoo, Sivaneswari and Phang, Wei Kit and Hassan, Mukhainizam Mah and Redzuan, Mohd Sabri and Kumar, Shurendar Selva and de Silva, Jeremy Ryan and Lau, Yee Ling and Vythilingam, Indra (2021) Improved aedes /dengue field surveillance using Gravid Oviposition Sticky trap and dengue NS1 tests: Epidemiological, entomological outcomes and community acceptance. Acta Tropica, 216. ISSN 0001-706X, DOI https://doi.org/10.1016/j.actatropica.2021.105829.

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Abstract

The aim of this study is to investigate the feasibility and outcomes of using Gravid Oviposition Sticky (GOS) trap and dengue NS1 antigen tests for indoor and outdoor dengue/Aedes surveillance in the field. A one-year community-based study was carried out at Sungai Buloh Hospital Quarters, Selangor, Malaysia. GOS traps were first placed outdoors in three apartment blocks (Anggerik, Bunga Raya and Mawar). Beginning 29th week of the study, indoor traps were set in two apartment units on every floor in Anggerik. All female Aedes mosquitoes caught were tested for the presence of dengue NS1 antigen. Dengue seroprevalence and knowledge, attitude and practices on dengue prevention of the community and their reception to the surveillance approach were also assessed. Dengue-positive mosquitoes were detected at least 1 week before a dengue onset. More mosquitoes were caught indoors than outdoors in block Anggerik, but the total number of mosquitoes caught in all 3 blocks were similar. There was a significant difference in distribution of Ae. aegypti and Ae. albopictus between the 3 blocks. 66.1% and 3.4% of the community were positive for dengue IgG and IgM, respectively. Most respondents think that this surveillance method is Good (89%) and support its use nationwide. Dengue case ratio in the study apartment blocks decreased from year 2018 to 2019. This study demonstrated the practicality of performing proactive dengue/Aedes surveillance inside apartment units using the GOS traps. This surveillance method can be performed with immediate result output in the field.

Item Type: Article
Funders: Universiti Malaya, Malaysia[TU002-2019], Malaysian Ministry of Higher Education (FRGSMRSA)[MO013-2017]
Uncontrolled Keywords: Dengue;Aedes;Surveillance;Mosquito trap;Dengue seroprevalence;Knowledge;Attitude and practice
Subjects: R Medicine
Divisions: Faculty of Medicine
Depositing User: Ms Zaharah Ramly
Date Deposited: 17 Jun 2022 04:03
Last Modified: 17 Jun 2022 04:03
URI: http://eprints.um.edu.my/id/eprint/34213

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