It is not easy extensive the immune programme of each hoggery is difference . Currently new progress of classical swine fever immunization study has been made on the world But the monitoring for hog cholera antibody is only to detecting the level of IgG .

当前国际上在 猪瘟的免疫研究方面不断取得新进展，但对于 猪瘟 免疫抗体水平监测通常只是对IgG水平的监测。

Tissue samples from 12 farms in Hunan province were tested for antigen of classical swine fever virus by sandwich ELISA and the positive rate of hog cholera was 83.3 % ( 50 / 60 ) in 10 farms .

采用夹心ELISA对我省12猪场60份猪组织样品进行 猪瘟抗原检测，其中阳性样50份，占83.3%，分布于10猪场。

Hog cholera ( Classical swine fever CSF ) is a highly contagious infectious disease of pig characterized by fever and bleeding .

猪瘟（Classical SwineFever，CSF）是猪的一种高度接触性传染病，以发热和出血为主要特征。