Abstract: In order to analyze the differences between RT-PCR and ELISA antigen detection methods in classical swine fever virus detection,120 clinical samples were detected by the two methods. According to the study released by the NCBI swine fever virus strain Shi-men E2 gene sequence, design and synthesis of a pair of detection of classical swine fever virus E2 gene PCR primer. Submitted to the 120 suspected swine fever disease compound extracted total RNA, after one-step RT-PCR amplification of E2 gene, checked out 32 samples were expected to contain swine fever antigen, positive rate was 26.7%. ELISA antigen detection kit checked out 38 samples were expected to contain swine fever antigen, positive rate was 31.7%. One-step RT-PCR detected 32 positive samples were also positive in the detection of ELISA. The establishment of classical swine fever virus RT-PCR detection of nucleic acid and antigen detection ELISA. Pathogen detection of classical swine fever supplied technical support for the provision of Yunnan.

Key words: classical swine fever virus; RT-PCR; ELISA antigen detection