Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Korea.
Department of Aquaculture, Korea National College of Agriculture and Fisheries, Jeonju, Korea.
Transbound Emerg Dis. 2019 Jul;66(4):1442-1448. doi: 10.1111/tbed.13200. Epub 2019 May 2.
Since November 2017, mass mortalities of larvae of bay scallop (Argopecten irradians) were reported in hatcheries located at the southern area of Republic of Korea. Over 90% of larvae aged 5-10 days sank to the bottom of the tank and died. The hatcheries could not produce spat, and thus artificial seed production industry incurred huge losses. We identified Ostreid Herpesvirus-1 μVar (OsHV-1 μVar) associated with mass mortality by PCR, sequencing and transmission electron microscopy (TEM). All the samples were positive for OsHV-1 μVar with 99% sequence identity to previously reported OsHV-1 μVar sequences. Partial sequence of ORF-4 of OsHV-1 detected in this study was more closely related to sequences isolated from Europe. This is the first report to confirm the mortality caused by an OsHV-1 infection in the bay scallop.
自 2017 年 11 月以来，韩国南部地区的养殖场报告了海湾扇贝（Argopecten irradians）幼虫大量死亡。超过 90%的 5-10 日龄幼虫沉到底部并死亡。养殖场无法生产幼贝，因此人工育苗产业遭受了巨大损失。我们通过 PCR、测序和透射电子显微镜（TEM）鉴定出与大规模死亡相关的牡蛎疱疹病毒 1 μVar（OsHV-1 μVar）。所有样本均为 OsHV-1 μVar 阳性，与先前报道的 OsHV-1 μVar 序列的同源性为 99%。本研究中检测到的 OsHV-1 的 ORF-4 部分序列与从欧洲分离的序列更为密切相关。这是首次确认海湾扇贝感染 OsHV-1 导致死亡的报告。
