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首页> 外文期刊>Epidemiology and Infection >Emerging epidemic diseases of frogs in Britain are dependent on the source of ranavirus agent and the route of exposure
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Emerging epidemic diseases of frogs in Britain are dependent on the source of ranavirus agent and the route of exposure

机译：在英国，新出现的青蛙流行病取决于鼻病毒病原的来源和接触途径

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摘要

A series of transmission studies was conducted to investigate the aetiology, or aetiologies, of emerging fatal epidemic disease syndromes affecting the common frog (Rana temporaria) in Britain. The syndromes, characterized by skin ulceration or systemic haemorrhages, were induced upon exposure to lesion homogenates or cultured ranavirus. The re-isolation of ranavirus from experimentally affected frogs fulfilled Koch's postulates. Aeromonas hydrophila, previously associated with similar lesions, was not significant to disease development. Unexpectedly, disease outcomes were influenced by both the source of agent and the route of exposure, indicating that different ranaviruses with different tissue tropisms and pathogeneses (possibly similar to quasi-species in RNA virus populations) are circulating in the British common frog population. Our findings confirm that ranavirus disease has emerged as an important cause of amphibian mortality in Britain.
机译：进行了一系列传播研究，以调查影响英国常见蛙类（蛙蛙）的新兴致命流行病综合症的病因。以皮肤溃疡或全身性出血为特征的综合症是在暴露于病灶匀浆或培养的鼻病毒后诱发的。从受实验影响的青蛙中重新分离出鼻病毒符合科赫的假设。先前与相似病灶相关的亲水性气单胞菌对疾病的发展并不重要。出乎意料的是，疾病的结局受媒介来源和接触途径的影响，表明在英国普通蛙种群中流行着具有不同组织嗜性和病原性的不同的鼻病毒（可能类似于RNA病毒种群中的准种）。我们的发现证实，鼻病毒病已成为英国两栖动物死亡的重要原因。

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