Ibaraki Prefectural Western District Livestock Health and Hygiene Office, 42-4 Araishinden, Chikusei, Ibaraki 300-4516, Japan.
Ibaraki Prefectural Northern District Livestock Health and Hygiene Office, 966-1 Nakakawachi-cho, Mito, Ibaraki 310-0002, Japan.
Vet Microbiol. 2014 Jun 25;171(1-2):210-4. doi: 10.1016/j.vetmic.2014.03.032. Epub 2014 Mar 31.
The first isolation of border disease virus (BDV) in Japan was from a pig farm of the farrow-to-finishing type that kept no small ruminants or cattle. The infection was detected in the course of sero-surveillance for classical swine fever virus (CSFV) in Japan. The infected pigs had no clinical symptoms of CSFV or other disease; nevertheless, a high sero-positive rate of 58.5% was identified. A persistently infected pig with the BDV was found and suspected to be the cause of sero-prevalence in the farm. The isolated BDV was genetically close to BDV strains from New Zealand, but there was no epidemiological evidence concerning the route(s) of the invasion into the farm.
日本首次分离到边境病病毒（BDV）是在一个没有小反刍动物或牛的育肥-育肥型猪场。该感染是在日本对经典猪瘟病毒（CSFV）进行血清学监测的过程中发现的。受感染的猪没有 CSFV 或其他疾病的临床症状；然而，血清阳性率却高达 58.5%。在猪场发现了一头持续感染 BDV 的猪，疑似是该猪场血清流行的原因。分离出的 BDV 在遗传上与来自新西兰的 BDV 株密切相关，但没有关于该病毒入侵猪场途径的流行病学证据。
