國家衛生研究院 NHRI:Item 3990099045/13970

NHRI > National Institute of Infectious Diseases and Vaccinology > Chun-Hong Chen > Periodical Articles > Item 3990099045/13970

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/13970

Title:	Lab-scale characterization and semi-field trials of Wolbachia Strain wAlbB in a Taiwan Wolbachia introgressed Ae. aegypti strain
Authors:	Liu, WL;Yu, HY;Chen, YX;Chen, BY;Leaw, SN;Lin, CH;Su, MP;Tsai, LS;Chen, Y;Shiao, SH;Xi, Z;Jang, ACC;Chen, CH
Contributors:	National Institute of Infectious Diseases and Vaccinology;National Mosquito-Borne Diseases Control Research Center
Abstract:	Dengue fever is one of the most severe viral diseases transmitted by Aedes mosquitoes, with traditional approaches of disease control proving insufficient to prevent significant disease burden. Release of Wolbachia-transinfected mosquitoes offers a promising alternative control methodologies; Wolbachia-transinfected female Aedes aegypti demonstrate reduced dengue virus transmission, whilst Wolbachia-transinfected males cause zygotic lethality when crossed with uninfected females, providing a method for suppressing mosquito populations. Although highly promising, the delicate nature of population control strategies and differences between local species populations means that controlled releases of Wolbachia-transinfected mosquitoes cannot be performed without extensive testing on specific local Ae. aegypti populations. In order to investigate the potential for using Wolbachia to suppress local Ae. aegypti populations in Taiwan, we performed lab-based and semi-field fitness trials. We first transinfected the Wolbachia strain wAlbB into a local Ae. aegypti population (wAlbB-Tw) and found no significant changes in lifespan, fecundity and fertility when compared to controls. In the laboratory, we found that as the proportion of released male mosquitoes carrying Wolbachia was increased, population suppression could reach up to 100%. Equivalent experiments in semi-field experiments found suppression rates of up to 70%. The release of different ratios of wAlbB-Tw males in the semi-field system provided an estimate of the optimal size of male releases. Our results indicate that wAlbB-Tw has significant potential for use in vector control strategies aimed at Ae. aegypti population suppression in Taiwan. Open field release trials are now necessary to confirm that wAlbB-Tw mediated suppression is feasible in natural environments.
Date:	2022-01-11
Relation:	PLoS Neglected Tropical Diseases. 2022 Jan 11;16:Article number e0010084.
Link to:	http://dx.doi.org/10.1371/journal.pntd.0010084
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1935-2735&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000749278100002
Cited Times(Scopus):	https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85123462039
Appears in Collections:	[Chun-Hong Chen] Periodical Articles [Others] Periodical Articles

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