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首页> 外文期刊>Aquaculture >Widespread outbreaks of the emerging mandarinfish ranavirus (MRV) both in natural and ISKNV-FKC vaccinated mandarinfish Siniperca chuatsi in Guangdong, South China, 2017
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Widespread outbreaks of the emerging mandarinfish ranavirus (MRV) both in natural and ISKNV-FKC vaccinated mandarinfish Siniperca chuatsi in Guangdong, South China, 2017

机译：在广东省广东省的自然和isknv-fkc疫苗普遍普遍普遍普遍的普通鹦鹉普遍的普通蛋白鱼苗siniperca chuatsi，普遍爆发。

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摘要

Widespread outbreaks of mandarinfish (Siniperca chuatsi) ranavirus (MRV) have emerged in many mandarinfish farms in Guangdong, the most important region of the mandarinfish industry in China. Unlike the early typical clinical signs of abnormally swollen abdomens due to extremely severe ascites, diseased fish from the reemerging natural outbreaks of MRVs had little ascites but showed lethargy, anorexia and a typical sleepy syndrome. The disease duration of the natural outbreak of MRV could last for 1 to 5 months. Additionally, the majority of the surviving fish showed persistent anorexia and body emaciation and deformity, which is also very different from the symptoms of mandarinfish infectious spleen and kidney necrosis virus (ISKNV)-the notorious and well-known iridoviral agent in the mandarinfish industry. Mandarinfish vaccinated with the ISKNV-inactivated vaccine showed no protective effect against the natural outbreak of MRV, whereas the ISKNV vaccine seamed to induce a stronger outbreak of the MRV disease in MRV carrier fish. By real-time quantitative PCR, the liver, spleen, kidney as well as intestine are shown to be the major viral reservoirs, both under artificial infection and natural outbreak. Additionally, histopathology, immuno-histochemistry, immunofluorescence assay and transmission electron microscopy also confirmed the pathogenicity of MRV to mandarinfish. Collectively, the emerging MRV disease remained a severe and actual threat to the mandarinfish industry. As two different genera members in the family Iridoviridae, the ISKNV vaccine provided no cross-protection against MRV. A combination vaccine, containing both ISKNV and MRV, is urgently needed.
机译：广东州普通话（SINIPERCA Chuatsi）Ranavirus（MRV）的广泛爆发在广东许多普通话农场，是中国普通话工业最重要的地区。与由于极其严重的腹水引起的腹部异常肿胀的典型临床症状不同，来自MRV的再生自然爆发的患鱼有点腹水，但显示出嗜睡，厌食和典型的困倦综合征。 MRV自然爆发的疾病持续时间可以持续1至5个月。此外，大多数幸存的鱼都表现出持续的厌食和身体解剖和畸形，也与普通话中的症状感染脾脏和肾脏坏死病毒（Isknv）的症状非常不同 - 普通话工业中臭名昭着和着名的铱星性药剂。用IsknV灭活疫苗接种的普通话疫苗对MRV的自然爆发没有保护作用，而ISKNV疫苗接缝以诱导MRV载体鱼类的MRV病爆发。通过实时定量PCR，肝脏，脾脏，肾脏以及肠道被证明是主要的病毒储层，包括在人工感染和自然爆发下。另外，组织病理学，免疫组织化学，免疫荧光测定和透射电子显微镜也证实了MRV对普通话的致病性。集体，新兴MRV病仍然是普通话工业的严重和实际威胁。作为伊米多维尿的两种不同的属成员，ISKNV疫苗不提供对MRV的交叉保护。迫切需要含有IsknV和MRV的组合疫苗。

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  • 来源
    《Aquaculture》 |2020年第2020期|共11页
  • 作者

    Zhang Wenfeng; Duan Chao; Zhang Hetong; Weng Shaoping; He Jianguo; Dong Chuanfu;

  • 作者单位

    Sun Yat Sen Univ Southern Marine Sci &

    Engn Guangdong Lab Zhuhai State Key Lab Biocontrol Sch Life Sci Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Southern Marine Sci &

    Engn Guangdong Lab Zhuhai State Key Lab Biocontrol Sch Life Sci Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Southern Marine Sci &

    Engn Guangdong Lab Zhuhai State Key Lab Biocontrol Sch Life Sci Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Southern Marine Sci &

    Engn Guangdong Lab Zhuhai State Key Lab Biocontrol Sch Life Sci Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Southern Marine Sci &

    Engn Guangdong Lab Zhuhai State Key Lab Biocontrol Sch Life Sci Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Southern Marine Sci &

    Engn Guangdong Lab Zhuhai State Key Lab Biocontrol Sch Life Sci Guangzhou 510275 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水产、渔业;
  • 关键词

    Iridoviral diseases; Mandarinfish ranavirus; Persistent infection; Infectious spleen and kidney necrosis virus (ISKNV) vaccine;

    机译：铱星性疾病;普通话鱼ranavirus;持续感染;传染性脾脏和肾脏坏死病毒（Isknv）疫苗;

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