湖南省一起猪伪狂犬病疫情的暴发调查

Outbreak Investigation of Porcine Pseudorabies in Hunan Province

2015年5—6月,长沙市某猪场出现母猪流产、仔猪死亡等现象,共有60余头经产母猪流产,发病率为11%;仔猪发病死亡600余头,病死率达100%。经现场流行病学调查和实验室检测,判定该场暴发猪伪狂犬病疫情。采取淘汰阳性猪群、紧急免疫猪伪狂犬病疫苗以及加强猪场内部管理等控制措施,最终疫情得到控制。分析认为引种不规范、免疫程序不合理、饲养管理不规范是引起疫情暴发的主要原因。建议猪场加强仔猪的免疫保护和经产母猪、后备猪的引种、免疫和饲养管理。

More than 60 sows were aborted with the morbidity of 11 % and over 600 piglet died in a pig farm with the fatality rate of up to 100% from May to June in 2015.An outbreak investigation was conducted and porcine pseudorabies infection was confirmed by field investigation and laboratory test.Some control strategies such as immediate elimination of positive herds,emergency vaccination of the whole farm and strengthening the internal management were taken,finally,the epidemic had been effectively controlled.The main causes of the outbreak were analyzed as improper breeding introduction,unreasonable vaccination schedule and unregulated animal production management.