Staff View: Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia

Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia

A one year study was conducted to evaluate the impact of spray application of Bacillus thuringiensis israelensis (Bti), strain AM65-52 on vector populations and dengue transmission in a dengue endemic state in Malaysia. Residential sites with similar populations of Aedes aegypti (L.) and Aedes albop...

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Main Authors:	Tan, A.W.A., Loke, S.R., Benjamin, S., Lee, H.L., Chooi, K.H., Sofian-Azirun, Mohd
Format:	Article
Published:	2012
Subjects:	QH301 Biology
Online Access:	http://eprints.um.edu.my/5821/
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spelling	my.um.eprints.58212019-12-04T09:05:40Z http://eprints.um.edu.my/5821/ Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia Tan, A.W.A. Loke, S.R. Benjamin, S. Lee, H.L. Chooi, K.H. Sofian-Azirun, Mohd QH301 Biology A one year study was conducted to evaluate the impact of spray application of Bacillus thuringiensis israelensis (Bti), strain AM65-52 on vector populations and dengue transmission in a dengue endemic state in Malaysia. Residential sites with similar populations of Aedes aegypti (L.) and Aedes albopictus Skuse were studied. One site was treated with spray application of Bti into all outdoor target vector habitats, which consisted of natural and artificial containers. The other site was not treated. The impact of spray application was measured with an indoor and outdoor ovitrap index (00 and epidemiologic data. Significant reductions in both Ae. aegypti and Ae. albopictus, OI were observed both indoors and outdoors, in treated sites compared to untreated sites (p<0.05). 01 reduction was achieved over time in the treated area. The CH was suppressed to below 10. This was maintained for 4 weeks into the post-treatment phase. The outdoor CH at the untreated site remained at more than 40 for 38 weeks during the evaluation period. One dengue case occurred at the Bti treatment site at the beginning of the treatment phase, but no further cases were detected during the remainder of the treatment phase. However, there was an ongoing dengue outbreak in the untreated area with 15 serologically confirmed cases during weeks 37-54. Intensive fogging operations with pyrethroids at the untreated (Bti) site had a positive impact on Ae. albopictus, but not on Ae. aegypti. 2012 Article PeerReviewed Tan, A.W.A. and Loke, S.R. and Benjamin, S. and Lee, H.L. and Chooi, K.H. and Sofian-Azirun, Mohd (2012) Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia. Southeast Asian Journal of Tropical Medicine and Public Health, 43 (2). pp. 296-310. ISSN 0125-1562
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	QH301 Biology
spellingShingle	QH301 Biology Tan, A.W.A. Loke, S.R. Benjamin, S. Lee, H.L. Chooi, K.H. Sofian-Azirun, Mohd Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia
description	A one year study was conducted to evaluate the impact of spray application of Bacillus thuringiensis israelensis (Bti), strain AM65-52 on vector populations and dengue transmission in a dengue endemic state in Malaysia. Residential sites with similar populations of Aedes aegypti (L.) and Aedes albopictus Skuse were studied. One site was treated with spray application of Bti into all outdoor target vector habitats, which consisted of natural and artificial containers. The other site was not treated. The impact of spray application was measured with an indoor and outdoor ovitrap index (00 and epidemiologic data. Significant reductions in both Ae. aegypti and Ae. albopictus, OI were observed both indoors and outdoors, in treated sites compared to untreated sites (p<0.05). 01 reduction was achieved over time in the treated area. The CH was suppressed to below 10. This was maintained for 4 weeks into the post-treatment phase. The outdoor CH at the untreated site remained at more than 40 for 38 weeks during the evaluation period. One dengue case occurred at the Bti treatment site at the beginning of the treatment phase, but no further cases were detected during the remainder of the treatment phase. However, there was an ongoing dengue outbreak in the untreated area with 15 serologically confirmed cases during weeks 37-54. Intensive fogging operations with pyrethroids at the untreated (Bti) site had a positive impact on Ae. albopictus, but not on Ae. aegypti.
format	Article
author	Tan, A.W.A. Loke, S.R. Benjamin, S. Lee, H.L. Chooi, K.H. Sofian-Azirun, Mohd
author_facet	Tan, A.W.A. Loke, S.R. Benjamin, S. Lee, H.L. Chooi, K.H. Sofian-Azirun, Mohd
author_sort	Tan, A.W.A.
title	Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia
title_short	Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia
title_full	Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia
title_fullStr	Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia
title_full_unstemmed	Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia
title_sort	spray application of bacillus thuringiensis israelensis (bti strain am65-52) against aedes aegypti (l.) and ae. albopictus skuse populations and impact on dengue transmission in a dengue endemic residential site in malaysia
publishDate	2012
url	http://eprints.um.edu.my/5821/
_version_	1654960617939795968
score	13.211869

Spray Application Of Bacillus Thuringiensis Israelensis (Bti Strain Am65-52) Against Aedes Aegypti (L.) And Ae. Albopictus Skuse Populations And Impact On Dengue Transmission In A Dengue Endemic Residential Site In Malaysia

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