Biyun Ching, Xuan Hui Teo, Christine Hui En Lee, Alvin Wee, Angeline Lua, Yih Hong Tay, Wai Kwan Wong, Charlene Judith Fernandez, Diana Chee, Kelvin Lim, Siow Foong Chang
{"title":"在新加坡培养的四指丝线中，四指丝线中有严重诺卡菌和牛链球菌的共同感染","authors":"Biyun Ching, Xuan Hui Teo, Christine Hui En Lee, Alvin Wee, Angeline Lua, Yih Hong Tay, Wai Kwan Wong, Charlene Judith Fernandez, Diana Chee, Kelvin Lim, Siow Foong Chang","doi":"10.1002/aff2.70038","DOIUrl":null,"url":null,"abstract":"<p>Between April and May 2021, two batches of diseased fourfinger threadfin (<i>Eleutheronema tetradactylum</i>) from an open-sea net cage farm were submitted for diagnostic post-mortem examination. Necropsy and histopathology identified necrosis within multiple organs with intralesional Gram-positive, branching, beaded filamentous bacilli suggestive of <i>Nocardia</i> species. Intralesional Gram-positive cocci were also observed within the heart sections. These Gram-positive bacilli and cocci were subsequently confirmed to be <i>Nocardia seriolae</i> and <i>Streptococcus iniae</i>, respectively, through isolation, PCR and sequencing. This is the first report from Singapore of <i>N. seriolae</i> and <i>S. iniae</i> co-infection and outbreak in cultured fourfinger threadfin.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"5 2","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70038","citationCount":"0","resultStr":"{\"title\":\"Nocardia seriolae and Streptococcus iniae Co-Infection in Cultured Fourfinger threadfin, Eleutheronema tetradactylum, in Singapore\",\"authors\":\"Biyun Ching, Xuan Hui Teo, Christine Hui En Lee, Alvin Wee, Angeline Lua, Yih Hong Tay, Wai Kwan Wong, Charlene Judith Fernandez, Diana Chee, Kelvin Lim, Siow Foong Chang\",\"doi\":\"10.1002/aff2.70038\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Between April and May 2021, two batches of diseased fourfinger threadfin (<i>Eleutheronema tetradactylum</i>) from an open-sea net cage farm were submitted for diagnostic post-mortem examination. Necropsy and histopathology identified necrosis within multiple organs with intralesional Gram-positive, branching, beaded filamentous bacilli suggestive of <i>Nocardia</i> species. Intralesional Gram-positive cocci were also observed within the heart sections. These Gram-positive bacilli and cocci were subsequently confirmed to be <i>Nocardia seriolae</i> and <i>Streptococcus iniae</i>, respectively, through isolation, PCR and sequencing. This is the first report from Singapore of <i>N. seriolae</i> and <i>S. iniae</i> co-infection and outbreak in cultured fourfinger threadfin.</p>\",\"PeriodicalId\":100114,\"journal\":{\"name\":\"Aquaculture, Fish and Fisheries\",\"volume\":\"5 2\",\"pages\":\"\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2025-04-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.70038\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Aquaculture, Fish and Fisheries\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/aff2.70038\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"FISHERIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aquaculture, Fish and Fisheries","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/aff2.70038","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"FISHERIES","Score":null,"Total":0}
Nocardia seriolae and Streptococcus iniae Co-Infection in Cultured Fourfinger threadfin, Eleutheronema tetradactylum, in Singapore
Between April and May 2021, two batches of diseased fourfinger threadfin (Eleutheronema tetradactylum) from an open-sea net cage farm were submitted for diagnostic post-mortem examination. Necropsy and histopathology identified necrosis within multiple organs with intralesional Gram-positive, branching, beaded filamentous bacilli suggestive of Nocardia species. Intralesional Gram-positive cocci were also observed within the heart sections. These Gram-positive bacilli and cocci were subsequently confirmed to be Nocardia seriolae and Streptococcus iniae, respectively, through isolation, PCR and sequencing. This is the first report from Singapore of N. seriolae and S. iniae co-infection and outbreak in cultured fourfinger threadfin.
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