首页> 美国卫生研究院文献>Virology Journal >A DNA vaccine encoding the viral hemorrhagic septicemia virus genotype IVb glycoprotein confers protection in muskellunge (Esox masquinongy) rainbow trout (Oncorhynchus mykiss) brown trout (Salmo trutta) and lake trout (Salvelinus namaycush)
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A DNA vaccine encoding the viral hemorrhagic septicemia virus genotype IVb glycoprotein confers protection in muskellunge (Esox masquinongy) rainbow trout (Oncorhynchus mykiss) brown trout (Salmo trutta) and lake trout (Salvelinus namaycush)

机译:编码病毒性出血性败血症病毒基因型IVb糖蛋白的DNA疫苗可在muskellunge(Esox masquinongy)虹鳟(Oncorhynchus mykiss)褐鳟(Salmo trutta)和湖鳟(Salvelinus namaycush)中提供保护

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摘要

BackgroundThe viral hemorrhagic septicemia virus (VHSV) is one of the most serious fish pathogens. In 2003, a novel sublineage (genotype IVb) of this deadly virus emerged in the Great Lakes basin causing serious fish kills. We have previously demonstrated that a DNA plasmid (pcDNA), containing a cytomegalovirus (CMV) promoter and the viral hemorrhagic septicemia virus (VHSV) genotype IVb glycoprotein (G) gene insert (designated pVHSivb-G) confers moderate protection in muskellunge (Esox masquinongy), a highly susceptible species upon challenge. In order to achieve optimal protection, we investigated a number of factors including the incubation time [i.e. the number of degree days (° days)] before challenge, and viral challenge dose and route. Additionally, we tested if pVHSivb-G provides protection against VHSV-IVb to less susceptible salmonids such as rainbow trout (Oncorhynchus mykiss), brown trout (Salmo trutta) and lake trout (Salvelinus namaycush).
机译:背景病毒性出血性败血病病毒(VHSV)是最严重的鱼类病原体之一。 2003年,大湖流域出现了这种致命病毒的新亚系(基因型IVb),导致严重的鱼类死亡。我们以前已经证明,DNA质粒(pcDNA)包含巨细胞病毒(CMV)启动子和病毒性出血性败血病病毒(VHSV)基因型IVb糖蛋白(G)基因插入片段(指定为pVHSivb-G),在麝香牛(Esox masquinongyy)中提供中等保护),是受到挑战的高度易感物种。为了获得最佳保护,我们研究了许多因素,包括孵育时间[即攻击前的度数天数(°天),以及病毒攻击的剂量和途径。此外,我们测试了pVHSivb-G是否对较不易感染的鲑鱼(例如虹鳟鱼(Oncorhynchus mykiss),褐鳟鱼(Salmo trutta)和湖鳟鱼(Salvelinus namaycush))提供针对VHSV-IVb的保护。

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