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Genetic analysis and pathogenicity of betanodavirus isolated from wild redspotted grouper Epinephelus akaara with clinical signs

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Authors
Gomez, Dennis K.; Matsuoka, Satoru; Mori, Koh-ichiro; Okinaka, Yasushi; Park, Se Chang; Nakai, Toshihiro
Issue Date
2009-01-08
Publisher
Springer Verlag
Citation
Arch Virol 154:343-346
Abstract
Diseased wild redspotted grouper Epinephelus akaara were collected from Seto Inland Sea, Ehime Prefecture, in August 2002. Fish showed erratic swimming behavior and inflation of the swim bladder. The fish brains were positive for nodavirus in both RT-PCR and nested PCR. The sequence of the nested PCR product (177 nt) was closely related to that of a known betanodavirus, redspotted grouper nervous necrosis virus. When juvenile sevenband grouper E. septemfasciatus were challenged intravitreously with virus, abnormal swimming behavior and high mortality were observed. This is the first report on viral nervous necrosis in a wild population of redspotted grouper with clinical signs.
ISSN
0304-8608 (print)
1432-8798 (online)
Language
English
URI
http://hdl.handle.net/10371/8618
DOI
https://doi.org/10.1007/s00705-008-0305-5
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College of Veterinary Medicine (수의과대학)Dept. of Veterinary Medicine (수의학과)Journal Papers (저널논문_수의학과)
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