2019—2023年湖南省浏阳市牛羊布鲁氏菌病血清学监测

Serological Surveillance on Brucellosis in Cattle and Sheep in Liuyang City,Hunan Province from 2019 to 2023

为掌握浏阳市牛羊布鲁氏菌病(以下简称布病)流行现状及防控净化效果,2019—2023年在全市开展了牛羊布病血清学监测工作。结果显示:共检出阳性场21个(其中羊场16个、牛场5个),平均场群阳性率为0.35%,阳性样品329份,平均个体阳性率为0.48%;除2019年外,每年均检测到布病阳性场,5—8月检出布病阳性场点数较多;有12个乡镇检出布病抗体阳性样品,4个区均有布病发生;21个阳性养殖场户中,17个为散养户,4个为商品代场,交易市场与种牛羊场均未检出阳性样品。结果表明:浏阳市牛羊群体中存在布病流行且流行范围较广,但处于低水平流行态势,发生区域性大流行的风险较小,但商品代场和散养户仍具有布病散发风险,还须继续加强布病防控并加大夏季的监测力度,同时严格落实检疫监督和调运监管,进一步加强从业人员的专业培训和行为干预,持续推进布病净化工作,全面提升布病综合防控能力。

In order to investigate the status of brucellosis in cattle and sheep and the efforts of prevention,control and eradication in Liuyang City,serological surveillance was carried out across the city from 2019 to 2023.The results showed that 21 positive farms(including 16 for sheep and 5 for cattle)were detected,and the average positive rate was 0.35%for the farms/herds,covering 329 positive samples,and that was 0.48%for the individuals;positive farms were detected every year except 2019,with a peak from May to August;positive samples were detected from 12 townships and all the 4 districts;for 21 positive farms,17 were free-range households,4 were commercial farms,and no positive samples were detected from markets and cattle and sheep breeding farms.In conclusion,brucellosis was widely prevalent in cattle and sheep in Liuyang City at low level,posing a low risk of regional pandemic,but potential risk of spread in commercial farms and free-range households,which indicated that the disease should be intensively prevented and controlled,especially monitored in summers,meanwhile quarantine supervision and transportation regulation should be strictly implemented,professional training and behavioral interventions of practitioners should be improved,and purification of the disease should be sped up to comprehensively improve the capacity of brucellosis prevention and control.