Lymphocystis disease virus (LCDV), the causative agent of lymphocystis disease (LCD), is a waterborne pathogen that uses the external surfaces, including the gills, as portals to gain access to fish host. However, there are no data on LCDV persistence in the aquatic environment. In this study, the persistence of LCDV in natural (raw), treated (autoclaved and filtered) and synthetic seawater held at 22 and 18 °C has been evaluated. The estimated T₉₉ values for LCDV in seawater ranged from 2.7 to 242 days depending on seawater type and temperature, with the highest value recorded at 22 °C in autoclaved seawater. Microbiota and temperature seem to be the main factors affecting the persistence of LCDV in seawater. The results indicated that LCDV is more stable in treated seawater than most of the fish pathogenic viruses studied so far, supporting the relevance of this medium for the prevalence of LCD in fish farms.

中文翻译：

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海水中的淋巴囊肿病病毒（LCDV）的持久性。

淋巴囊肿病病毒（LCDV）是淋巴囊肿病（LCD）的病原体，是一种水生病原体，利用包括including在内的外表面作为进入鱼类宿主的门户。但是，没有关于LCDV在水生环境中持久性的数据。在这项研究中，已经评估了LCDV在22和18°C的天然（原始），处理（高压灭菌和过滤）和合成海水中的持久性。估计的T ₉₉海水中LCDV的值在2.7至242天之间不等，具体取决于海水类型和温度，在高压灭菌的海水中记录的最高值为22°C。微生物群和温度似乎是影响LCDV在海水中持久性的主要因素。结果表明，LCDV在经过处理的海水中比迄今研究的大多数鱼类致病病毒更稳定，这支持了该培养基与鱼类养殖场中LCD流行的相关性。