›› 2012, Vol. 39 ›› Issue (3): 187-191.

• 疾病防治 • Previous Articles     Next Articles

Development of RT-PCR Assay for Rapid Detection and Subtyping of Swine Influenza H1,H3,N1,N2 Viruses

QI Hai-tao, KONG Wei-li, ZHANG Gui-hong   

  1. College of Veterinary Medicine,South China Agricultural University,Guangzhou 510642,China
  • Received:2011-08-03 Revised:1900-01-01 Online:2012-03-20 Published:2012-03-20

Abstract: According to the genomic sequence of H1N1,H3N2 subtype swine influenza virus (SIV) published in GenBank, the specific primers were designed according to the conserved region of H1,H3 HA,N1,N2 NA and M genes of swine influenza virus (SIV) H1N1,H3N2 subtype. RT-PCR assay was developed for detection of swine influenza H1,H3,N1,N2 subtype. The results showed that the RT-PCR was capable of detecting 104 EID50 of M and 104 EID50 of HA or NA. The results were negative for the detection of porcine reproductive and respiratory syndrome virus,CSFV and other subtypes except the corresponding subtype. The coincidence rates between RT-PCR and virus isolation were 100%. This assay provides a rapid,sensitive,and cost-effective laboratory diagnosis for detecting and subtyping of SIV in pigs.

Key words: swine influenza virus; H1 subtype; H3 subtype; N1 subtype; N2 subtype; RT-PCR

CLC Number: