Gifu Prefectural Chuo Livestock Hygiene Service Center, Gifu, Japan.
Department of Applied Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan.
J Vet Med Sci. 2022 Oct 1;84(10):1406-1409. doi: 10.1292/jvms.21-0554. Epub 2022 Aug 17.
Porcine reproductive and respiratory syndrome (PRRS) is an infectious swine disease caused by the PRRS virus (PRRSV) that results in economic loss to the pig-rearing industry. To study PRRSV infection in wild boars and pigs, we conducted a serological survey in Gifu Prefecture, Japan, from 2020 to 2021. Three out of 453 (0.7%) wild boar sera were positive for PRRSV antibodies in a commercial ELISA. However, given that PRRSV RNA was not detected in these three wild boars and the specificity and sensitivity of the test kit, these are considered as false positives. Although seropositive pigs were found in multiple pig farms in the study area, the role of wild boars as a source of PRRS to pig farms appeared to be minimal.
猪繁殖与呼吸综合征（PRRS）是一种由猪繁殖与呼吸综合征病毒（PRRSV）引起的传染性猪病，给养猪业造成了经济损失。为了研究野猪和猪中的 PRRSV 感染，我们于 2020 年至 2021 年在日本岐阜县进行了血清学调查。在商业 ELISA 中，3 份（0.7%）野猪血清对 PRRSV 抗体呈阳性。然而，鉴于这 3 只野猪中未检测到 PRRSV RNA，以及检测试剂盒的特异性和灵敏度，这些结果被认为是假阳性。尽管在研究区域的多个养猪场发现了血清阳性猪，但野猪作为 PRRS 传染源对养猪场的作用似乎很小。
