Efficacy of 3D screens for sustainable mosquito control: a semi-field experimental hut evaluation in northeastern Tanzania.

Autor: Kathet S; Department of Bacteriology and Immunology, Haartman Institute, and Translational Immunology Research Program, University of Helsinki, 00014, Helsinki, Finland., Sudi W; Amani Medical Research Centre, National Institute for Medical Research, Muheza, Tanzania., Mwingira V; Amani Medical Research Centre, National Institute for Medical Research, Muheza, Tanzania., Tungu P; Amani Medical Research Centre, National Institute for Medical Research, Muheza, Tanzania., Aalto M; East Africa University, Bosaso, Somalia., Hakala T; Department of Materials Science, Tampere University of Technology, P.O. Box 589, 33101, Tampere, Finland., Honkala M; Department of Materials Science, Tampere University of Technology, P.O. Box 589, 33101, Tampere, Finland., Malima R; Amani Medical Research Centre, National Institute for Medical Research, Muheza, Tanzania., Kisinza W; Amani Medical Research Centre, National Institute for Medical Research, Muheza, Tanzania., Meri S; Department of Bacteriology and Immunology, Haartman Institute, and Translational Immunology Research Program, University of Helsinki, 00014, Helsinki, Finland.; HUSLAB Diagnostic Center, Helsinki University Central Hospital, N00029, Helsinki, Finland., Khattab A; Department of Bacteriology and Immunology, Haartman Institute, and Translational Immunology Research Program, University of Helsinki, 00014, Helsinki, Finland. ayman.khattab@helsinki.fi.; Department of Nucleic Acid Research, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab City, 21934, Alexandria, Egypt. ayman.khattab@helsinki.fi.
Jazyk: angličtina
Zdroj: Parasites & vectors [Parasit Vectors] 2023 Nov 15; Vol. 16 (1), pp. 417. Date of Electronic Publication: 2023 Nov 15.
DOI: 10.1186/s13071-023-06032-4
Abstrakt: Background: A three-dimensional window screen (3D-Screen) has been developed to create a window double-screen trap (3D-WDST), effectively capturing and preventing the escape of mosquitoes. A 2015 laboratory study demonstrated the 3D-Screen's efficacy, capturing 92% of mosquitoes in a double-screen setup during wind tunnel assays. To further evaluate its effectiveness, phase II experimental hut trials were conducted in Muheza, Tanzania.
Methods: Three experimental hut trials were carried out between 2016 and 2017. Trial I tested two versions of the 3D-WDST in huts with open or closed eaves, with one version using a single 3D-Screen and the other using two 3D-Screens. Trial II examined the 3D-WDST with two 3D-Screens in huts with or without baffles, while Trial III compared handmade and machine-made 3D structures. Mosquito capturing efficacy of the 3D-WDST was measured by comparing the number of mosquitoes collected in the test hut to a control hut with standard exit traps.
Results: Trial I showed that the 3D-WDST with two 3D-Screens used in huts with open eaves achieved the highest mosquito-capturing efficacy. This treatment captured 33.11% (CI 7.40-58.81) of female anophelines relative to the total collected in this hut (3D-WDST and room collections) and 27.27% (CI 4.23-50.31) of female anophelines relative to the total collected in the control hut (exit traps, room, and verandahs collections). In Trial II, the two 3D-Screens version of the 3D-WDST captured 70.32% (CI 56.87-83.77) and 51.07% (CI 21.72-80.41) of female anophelines in huts with and without baffles, respectively. Compared to the control hut, the capturing efficacy for female anophelines was 138.6% (37.23-239.9) and 42.41% (14.77-70.05) for huts with and without baffles, respectively. Trial III demonstrated similar performance between hand- and machine-made 3D structures.
Conclusions: The 3D-WDST proved effective in capturing malaria vectors under semi-field experimental hut conditions. Using 3D-Screens on both sides of the window openings was more effective than using a single-sided 3D-Screen. Additionally, both hand- and machine-made 3D structures exhibited equally effective performance, supporting the production of durable cones on an industrial scale for future large-scale studies evaluating the 3D-WDST at the community level.
(© 2023. The Author(s).)
Databáze: MEDLINE
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