Wales Bovine TB Epidemiology Team, APHA Wales, Carmarthen, UK.
Wales Veterinary Science Centre, Aberystwyth, UK.
Sci Rep. 2020 Sep 16;10(1):15214. doi: 10.1038/s41598-020-72297-9.
In order to better understand the spatial spread of bovine tuberculosis (bTB) in Wales, an All Wales Badgers Found Dead (AWBFD) survey was carried out from 2014-2016. For Wales, as a whole, there was a significant decrease (p < 0.001) in prevalence of bTB in badgers since a similar survey was carried out in 2005-2006, with a drop from 13.3% to 7.3%. The highest prevalence was observed for the High TB Area East (18.6%), which shares its border with England, and differed significantly (p < 0.001) from the High TB Area West (7.4%). The lowest proportion of carcases diagnosed with the disease (0.7%) was in the Low TB Area, followed by the two Intermediate TB Areas of Wales (2.7%). The M. bovis isolates from badgers tended to be similar to the genotypes of cattle in the same area, except in the Low TB Area. The direction of any cross species transmission and the drivers for this cannot be determined from this study. The spatial variations described here support the need for regionally adapted surveillance and control measures for bovine tuberculosis in Wales.
为了更好地了解威尔士牛结核病（bTB）的空间传播，从 2014 年至 2016 年开展了全威尔士死獾调查（AWBFD）。就威尔士整体而言，自 2005 年至 2006 年进行了类似的调查以来，獾中 bTB 的流行率显著下降（p<0.001），从 13.3%降至 7.3%。高结核病区东（18.6%）的流行率最高，与英格兰接壤，与高结核病区西（7.4%）存在显著差异（p<0.001）。在低结核病区诊断出的患病獾比例最低（0.7%），其次是威尔士的两个中等结核病区（2.7%）。来自獾的 M. bovis 分离株与同一地区牛的基因型趋于相似，但在低结核病区除外。从本研究无法确定这种跨物种传播的方向及其驱动因素。这里描述的空间变化支持在威尔士针对牛结核病采取区域性适应的监测和控制措施。
