Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan.
Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan.
J Vet Med Sci. 2022 Aug 19;84(8):1142-1145. doi: 10.1292/jvms.22-0255. Epub 2022 Jul 6.
In Japan, the first patient with severe fever with thrombocytopenia syndrome was reported in Yamaguchi in 2012. To understand the severe fever with thrombocytopenia syndrome virus (SFTSV) infection in this region, a retrospective surveillance in sika deer and wild boars in Yamaguchi was conducted using a virus-neutralizing (VN) test. The result revealed that 510 of the 789 sika deer and 199 of the 517 wild boars were positive for anti-SFTSV antibodies. Interestingly, seroprevalence in sika deer increased significantly from 2010-2013 to 2015-2020. The SFTSV gene was detected in one of the 229 serum samples collected from sika deer, but not from wild boars. In conclusion, SFTSV had spread among wild animals before 2012 and expanded gradually around 2013-2015 in Yamaguchi.
在日本，2012 年山口县首次报告了严重发热伴血小板减少综合征患者。为了了解该地区严重发热伴血小板减少综合征病毒（SFTSV）感染情况，对山口县的梅花鹿和野猪进行了回顾性监测，采用病毒中和（VN）试验。结果显示，789 只梅花鹿中有 510 只和 517 只野猪中有 199 只对 SFTSV 抗体呈阳性。有趣的是，2010-2013 年至 2015-2020 年，梅花鹿的血清阳性率显著增加。从 229 份来自梅花鹿的血清样本中检测到了 SFTSV 基因，但从野猪中未检测到。总之，SFTSV 已于 2012 年之前在野生动物中传播，并于 2013-2015 年在山口县逐渐扩散。
