日本冲绳石垣岛和西表岛的猪和野猪中日本脑炎病毒的调查。
Survey of Japanese encephalitis virus in pigs and wild boars on Ishigaki and Iriomote Islands in Okinawa, Japan.
机构信息
Department of Biological Science, Okinawa Prefectural Institute of Health and Environment, Okinawa, Japan.
Okinawa Prefectural Yaeyama Public Health and Welfare Center, Okinawa, Japan.
出版信息
Epidemiol Infect. 2014 Apr;142(4):856-60. doi: 10.1017/S0950268813001611. Epub 2013 Jul 5.
SUMMARY We previously revealed that Japanese encephalitis virus (JEV) seroprevalence was 4.5% in pigs on Ishigaki Island from 2005 to 2007. However, a partial E gene sequence (151 bp) of the JEV genome (JEV/sw/Ishigaki/1/2005) was detected in one pig. Phylogenetic analysis showed that JEV/sw/Ishigaki/1/2005 belonged to genotype III and to the same lineages isolated in Taiwan from 2006 to 2008. Serum samples were collected from 128 pigs on Ishigaki from 2009 to 2010, 24 wild boars on Ishigaki from 2008 to 2010, and 117 wild boars on Iriomote Island from 2008 to 2010. Four (3.1%) pigs on Ishigaki were positive for JEV antibody, but all wild boars on the island were negative. Fifty-two (44.4%) wild boars on Iriomote were positive for JEV antibody, in contrast to a seroprevalence of 3.7% in 2000 and 2004. JEV on Iriomote and/or in Taiwan might be related to transmission on Ishigaki.
摘要 我们之前曾揭示，2005 年至 2007 年，在石垣岛的猪中，日本脑炎病毒（JEV）的血清阳性率为 4.5%。然而，我们从一头猪中检测到 JEV 基因组的部分 E 基因序列（151bp）（JEV/sw/Ishigaki/1/2005）。系统进化分析表明，JEV/sw/Ishigaki/1/2005 属于基因型 III，与 2006 年至 2008 年在台湾分离的株系相同。我们从 2009 年至 2010 年在石垣岛的 128 头猪、2008 年至 2010 年在石垣岛的 24 头野猪和 2008 年至 2010 年在伊里岛的 117 头野猪中采集了血清样本。石垣岛上有 4 头（3.1%）猪的 JEV 抗体呈阳性，但岛上所有野猪均为阴性。伊里岛上有 52 头（44.4%）野猪的 JEV 抗体呈阳性，而在 2000 年和 2004 年的阳性率为 3.7%。伊里岛和/或台湾的 JEV 可能与石垣岛的传播有关。
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