The serum antibodies to Porcine Parvovirus(PPV), Japanese B encephalitis virus (JBEV) and Pseudorabies virus(PrV) in serum samples of 67 gilts from two Pig - farms were detected with Latex agglutination test(LAT).

• 用乳胶凝集试验(LAT)对两个规模化猪场的后备母猪进行猪细小病毒病(PPV)、猪乙型脑炎(JBEV)和猪伪狂犬病(PrV)血清流行病学调查；共检查血清样本67头份；结果检出PPV抗体阳性血清28份；阳性率为41.；79%25; JBEV抗体阳性血清18份；阳性率为26