Sohier Charlotte, Michiels Rodolphe, Kapps Elena, Van Mael Eva, Quinet Christian, Cay Ann Brigitte, De Regge Nick
CODA-CERVA, Groeselenberg 99, 1180 Brussel, Belgium.
Dierengezondheidszorg Vlaanderen (DGZ), Deinse Horsweg 1, 9031 Drongen, Belgium.
Res Vet Sci. 2017 Oct;114:177-180. doi: 10.1016/j.rvsc.2017.04.011. Epub 2017 Apr 20.
Schmallenberg virus (SBV) emerged in North-Western Europe in 2011 and induces congenital defects in ruminants. Many epidemiological studies were undertaken to study the spread of the virus during the first two years after its emergence, but little data is available on the current antibody protection rate against SBV. A cross-sectional seroprevalence study was therefore carried out in the Belgian sheep population and showed that the total seroprevalence against SBV was 26% (CI: 21-32) at the end of the vector season of 2015, being significantly lower than the seroprevalence of 84% detected after the outbreak in 2011. Nevertheless, 63% (CI: 51-73) of the Belgian sheep flocks still had a certain level of protection against SBV. Despite the fact that PCR detection of SBV in aborted calves in April 2016 evidenced that SBV had circulated in 2015, no change in seroprevalence between 2014 and 2015 was found in the Belgian sheep population.
施马伦贝格病毒（SBV）于2011年在欧洲西北部出现，并可导致反刍动物出现先天性缺陷。在该病毒出现后的头两年，人们开展了许多流行病学研究以探究其传播情况，但目前关于抗SBV抗体保护率的数据却很少。因此，针对比利时绵羊群体开展了一项横断面血清流行率研究，结果显示，在2015年媒介传播季节结束时，抗SBV的总体血清流行率为26%（置信区间：21%-32%），显著低于2011年疫情爆发后检测到的84%的血清流行率。尽管如此，63%（置信区间：51%-73%）的比利时绵羊群仍然对SBV具有一定程度的保护作用。尽管2016年4月在流产犊牛中通过PCR检测出SBV在2015年仍有传播，但对比利时绵羊群体而言，2014年至2015年期间血清流行率并未发生变化。
