鲁豫冀交界地区重要猪病的流行病学调查

开展鲁豫冀交界地区重要猪病的流行病学调查对于控制和减少该地区重要猪病的发生具有重要意义。2016年3月—2017年10月从鲁豫冀交界地区采集了1 196份样本,采用ELISA检测试剂盒检测猪瘟（classical swine fever,CSF）、猪繁殖与呼吸综合征（porcine reproductive and respiratory syndrome,PRRS）、猪伪狂犬病（porcine pseudorabies,PR）、猪流行性腹泻（porcine epidemic diarrhea,PED）抗体及抗原。结果表明,猪瘟抗体阳性率为82.94%（496/598）,抗原阳性率为2.56%（6/234）;猪繁殖与呼吸综合征抗体阳性率为81.94%（490/598）,出现繁殖障碍性疾病的病料中抗原阳性率为20.73%（51/246）;猪伪狂犬病的g B抗体阳性率为72.78%（484/665）,g E抗体阳性率为14.59%（97/665）;PEDV抗体阳性率为47.50%（95/200）,其中免疫群体的阳性率为63.30%,未免疫群体的阳性率为35.00%。该调查结果表明,在以上地区重要猪病的免疫情况不容乐观,有待于进一步加强相关疾病的免疫工作。

Epidemiological Survey of Swine Diseases with Clinical Significance in the Border Area of Shandong,Hebei and Henan Provinces

Epidemiological investigation of swine diseases with clinical significance in the border area of Shandong, Hebei and Henan Provinces is of great importance to reduce the occurrence of major swine diseases in this region. In this study, a total of1 196 porcine samples were recovered from the border area of Shandong, Hebei and Henan Provinces from March 2016 to October 2017, and the antibody and antigen of classical swine fever virus（CSFV）, porcine reproductive and respiratory syndrome virus（PRRSV）, porcine pseudorabies virus（PRV）, and porcine epidemic diarrhea virus（PEDV） were detected by commercially available ELISA kits. The results showed that the antibody and antigen positive rate of CSFV was 82.94%（496/598） and 2.56%（6/234）, respectively; the antibody positive rate of PRRSV was 81.94%（490/598）, and the antigen positive rate of the clinical samples from the swine with reproductive disorders was 20.73%（51/246）; the g B and g E antibody positive rate of PRV was72.78%（484/665） and 14.59%（97/665）, respectively; the overall antibody positive rate of PEDV was 47.50%（95/200）, among which the immunized and un-immunized population was 63.30% and 35.00%, respectively. Our investigation demonstrated that the epidemic status of swine diseases with clinical significance in this region is severe, and the vaccinations against the related epidemic diseases should be further strengthened.