Bionomics and insecticide resistance of the arboviral vector Aedes albopictus in northern Lao PDR.
In the last four decades there has been a staggering increase in the geographical range of the arboviral vector Aedes albopictus (Skuse, 1894). This species is now found in every continent except Antarctica, increasing the distribution of arboviral diseases such as dengue and chikungunya. In Lao PDR...
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ftdoajarticles:oai:doaj.org/article:57dfb67e533145d6b273b49d993a30e3 2023-05-15T13:54:39+02:00 Bionomics and insecticide resistance of the arboviral vector Aedes albopictus in northern Lao PDR. Julie-Anne A Tangena Sébastien Marcombe Phoutmany Thammavong Somsanith Chonephetsarath Boudsady Somphong Kouxiong Sayteng Marc Grandadam Ian W Sutherland Steve W Lindsay Paul T Brey 2018-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0206387 https://doaj.org/article/57dfb67e533145d6b273b49d993a30e3 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC6201963?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0206387 https://doaj.org/article/57dfb67e533145d6b273b49d993a30e3 PLoS ONE, Vol 13, Iss 10, p e0206387 (2018) Medicine R Science Q article 2018 ftdoajarticles https://doi.org/10.1371/journal.pone.0206387 2022-12-31T13:36:04Z In the last four decades there has been a staggering increase in the geographical range of the arboviral vector Aedes albopictus (Skuse, 1894). This species is now found in every continent except Antarctica, increasing the distribution of arboviral diseases such as dengue and chikungunya. In Lao PDR dengue epidemics occur regularly, with cases of chikungunya also reported. As treatment methods for arboviral diseases is limited, the control of the vector mosquitoes are essential. There is a paucity of information on the bionomics and resistance status of this mosquito for successful vector control efforts. Here we describe the bionomics and insecticide resistance status of Ae. albopictus in Laos to identify opportunities for control. Adult Ae. albopictus were collected using human-baited double bed net (HDN) traps in forests, villages and rubber plantations and tested for alpha- and flaviviruses with RT-PCR. Surveys were also conducted to identify larval habitats. Seven adult and larval populations originating from Vientiane Capital and Luang Prabang province were tested against DDT, malathion, permethrin, deltamethrin and, temephos following WHO protocols. Aedes albopictus were found throughout the year, but were six-fold greater in the rainy season than the dry season. Adult females were active for 24 hours, with peak of behaviour at 18.00 h. The secondary forest and rubber plantation samples showed evidence of Pan-flaviviruses, while samples from the villages did not. More than half of the emerged Ae. albopictus were collected from mature rubber plantations (53.9%; 1,533/2,845). Most Ae. albopictus mosquitoes emerged from latex collection cups (19.7%; 562/2,845), small water containers (19.7%; 562/2,845) and tyres (17.4%; 495/2,845). Adult mosquitoes were susceptible to pyrethroids, apart from one population in Vientiane city. All populations were resistant to DDT (between 27-90% mortality) and all except one were resistant to malathion (20-86%). Three of the seven larval populations were resistant to temephos ... Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles PLOS ONE 13 10 e0206387 |
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Medicine R Science Q |
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Medicine R Science Q Julie-Anne A Tangena Sébastien Marcombe Phoutmany Thammavong Somsanith Chonephetsarath Boudsady Somphong Kouxiong Sayteng Marc Grandadam Ian W Sutherland Steve W Lindsay Paul T Brey Bionomics and insecticide resistance of the arboviral vector Aedes albopictus in northern Lao PDR. |
topic_facet |
Medicine R Science Q |
description |
In the last four decades there has been a staggering increase in the geographical range of the arboviral vector Aedes albopictus (Skuse, 1894). This species is now found in every continent except Antarctica, increasing the distribution of arboviral diseases such as dengue and chikungunya. In Lao PDR dengue epidemics occur regularly, with cases of chikungunya also reported. As treatment methods for arboviral diseases is limited, the control of the vector mosquitoes are essential. There is a paucity of information on the bionomics and resistance status of this mosquito for successful vector control efforts. Here we describe the bionomics and insecticide resistance status of Ae. albopictus in Laos to identify opportunities for control. Adult Ae. albopictus were collected using human-baited double bed net (HDN) traps in forests, villages and rubber plantations and tested for alpha- and flaviviruses with RT-PCR. Surveys were also conducted to identify larval habitats. Seven adult and larval populations originating from Vientiane Capital and Luang Prabang province were tested against DDT, malathion, permethrin, deltamethrin and, temephos following WHO protocols. Aedes albopictus were found throughout the year, but were six-fold greater in the rainy season than the dry season. Adult females were active for 24 hours, with peak of behaviour at 18.00 h. The secondary forest and rubber plantation samples showed evidence of Pan-flaviviruses, while samples from the villages did not. More than half of the emerged Ae. albopictus were collected from mature rubber plantations (53.9%; 1,533/2,845). Most Ae. albopictus mosquitoes emerged from latex collection cups (19.7%; 562/2,845), small water containers (19.7%; 562/2,845) and tyres (17.4%; 495/2,845). Adult mosquitoes were susceptible to pyrethroids, apart from one population in Vientiane city. All populations were resistant to DDT (between 27-90% mortality) and all except one were resistant to malathion (20-86%). Three of the seven larval populations were resistant to temephos ... |
format |
Article in Journal/Newspaper |
author |
Julie-Anne A Tangena Sébastien Marcombe Phoutmany Thammavong Somsanith Chonephetsarath Boudsady Somphong Kouxiong Sayteng Marc Grandadam Ian W Sutherland Steve W Lindsay Paul T Brey |
author_facet |
Julie-Anne A Tangena Sébastien Marcombe Phoutmany Thammavong Somsanith Chonephetsarath Boudsady Somphong Kouxiong Sayteng Marc Grandadam Ian W Sutherland Steve W Lindsay Paul T Brey |
author_sort |
Julie-Anne A Tangena |
title |
Bionomics and insecticide resistance of the arboviral vector Aedes albopictus in northern Lao PDR. |
title_short |
Bionomics and insecticide resistance of the arboviral vector Aedes albopictus in northern Lao PDR. |
title_full |
Bionomics and insecticide resistance of the arboviral vector Aedes albopictus in northern Lao PDR. |
title_fullStr |
Bionomics and insecticide resistance of the arboviral vector Aedes albopictus in northern Lao PDR. |
title_full_unstemmed |
Bionomics and insecticide resistance of the arboviral vector Aedes albopictus in northern Lao PDR. |
title_sort |
bionomics and insecticide resistance of the arboviral vector aedes albopictus in northern lao pdr. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2018 |
url |
https://doi.org/10.1371/journal.pone.0206387 https://doaj.org/article/57dfb67e533145d6b273b49d993a30e3 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
PLoS ONE, Vol 13, Iss 10, p e0206387 (2018) |
op_relation |
http://europepmc.org/articles/PMC6201963?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0206387 https://doaj.org/article/57dfb67e533145d6b273b49d993a30e3 |
op_doi |
https://doi.org/10.1371/journal.pone.0206387 |
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PLOS ONE |
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13 |
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10 |
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e0206387 |
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1766260713337126912 |