Taura syndrome virus (TSV) in Thailand and its relationship to TSV in China and the Americas
The cultivation of exotic Penaeus vannamei in Thailand began on a very limited scale in the late 1990s, but a Thai government ban on the cultivation of P. monodon in freshwater areas in 2000 led many Thai shrimp farmers to shift to cultivation of P. vannamei. Alarmed by the possibility of Taura synd...
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th-mahidol.162262018-06-21T15:06:50Z Taura syndrome virus (TSV) in Thailand and its relationship to TSV in China and the Americas Linda Nielsen Wiwat Sang-Oum Supapon Cheevadhanarak Timothy W. Flegel Mahidol University Thailand National Center for Genetic Engineering and Biotechnology King Mongkuts University of Technology Thonburi Agricultural and Biological Sciences The cultivation of exotic Penaeus vannamei in Thailand began on a very limited scale in the late 1990s, but a Thai government ban on the cultivation of P. monodon in freshwater areas in 2000 led many Thai shrimp farmers to shift to cultivation of P. vannamei. Alarmed by the possibility of Taura syndrome virus (TSV) introduction, the Thai Department of Fisheries required that imported stocks of P. vannamei be certified free of TSV by RT-PCR (Reverse Trasciption Polymerase Chain Reaction) testing. During the interval of allowed importation, over 150 000 broodstock shrimp were imported, 67% of these from China and Taiwan. Despite the safeguards, TSV outbreaks occurred and we confirmed the first outbreak by RT-PCR in early 2003. This resulted in a governmental ban on all shrimp broodstock imports from February 2003, but TSV outbreaks have continued, possibly due to original introductions or to the continued illegal importation of stocks. To determine the origin of the TSV in Thailand, the viral coat protein gene VP1 was amplified by RT-PCR from several shrimp specimens found positive for TSV by RT-PCR from January to November 2003. These included 7 samples from P. vannamei disease outbreaks in Thailand, 3 other non-diseased shrimp samples from Thailand and Burma and 6 samples including P. vannamei and P. japonicus from China. Comparison revealed that the Thai, Burmese and Chinese TSV types formed a clade distinct from a clade of TSV types from the Americas. © Inter-Research 2005. 2018-06-21T08:06:50Z 2018-06-21T08:06:50Z 2005-02-28 Article Diseases of Aquatic Organisms. Vol.63, No.2-3 (2005), 101-106 10.3354/dao063101 01775103 2-s2.0-16344393771 https://repository.li.mahidol.ac.th/handle/123456789/16226 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=16344393771&origin=inward |
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Agricultural and Biological Sciences Linda Nielsen Wiwat Sang-Oum Supapon Cheevadhanarak Timothy W. Flegel Taura syndrome virus (TSV) in Thailand and its relationship to TSV in China and the Americas |
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The cultivation of exotic Penaeus vannamei in Thailand began on a very limited scale in the late 1990s, but a Thai government ban on the cultivation of P. monodon in freshwater areas in 2000 led many Thai shrimp farmers to shift to cultivation of P. vannamei. Alarmed by the possibility of Taura syndrome virus (TSV) introduction, the Thai Department of Fisheries required that imported stocks of P. vannamei be certified free of TSV by RT-PCR (Reverse Trasciption Polymerase Chain Reaction) testing. During the interval of allowed importation, over 150 000 broodstock shrimp were imported, 67% of these from China and Taiwan. Despite the safeguards, TSV outbreaks occurred and we confirmed the first outbreak by RT-PCR in early 2003. This resulted in a governmental ban on all shrimp broodstock imports from February 2003, but TSV outbreaks have continued, possibly due to original introductions or to the continued illegal importation of stocks. To determine the origin of the TSV in Thailand, the viral coat protein gene VP1 was amplified by RT-PCR from several shrimp specimens found positive for TSV by RT-PCR from January to November 2003. These included 7 samples from P. vannamei disease outbreaks in Thailand, 3 other non-diseased shrimp samples from Thailand and Burma and 6 samples including P. vannamei and P. japonicus from China. Comparison revealed that the Thai, Burmese and Chinese TSV types formed a clade distinct from a clade of TSV types from the Americas. © Inter-Research 2005. |
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Mahidol University |
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Mahidol University Linda Nielsen Wiwat Sang-Oum Supapon Cheevadhanarak Timothy W. Flegel |
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Article |
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Linda Nielsen Wiwat Sang-Oum Supapon Cheevadhanarak Timothy W. Flegel |
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Linda Nielsen |
title |
Taura syndrome virus (TSV) in Thailand and its relationship to TSV in China and the Americas |
title_short |
Taura syndrome virus (TSV) in Thailand and its relationship to TSV in China and the Americas |
title_full |
Taura syndrome virus (TSV) in Thailand and its relationship to TSV in China and the Americas |
title_fullStr |
Taura syndrome virus (TSV) in Thailand and its relationship to TSV in China and the Americas |
title_full_unstemmed |
Taura syndrome virus (TSV) in Thailand and its relationship to TSV in China and the Americas |
title_sort |
taura syndrome virus (tsv) in thailand and its relationship to tsv in china and the americas |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/16226 |
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