Both authors contributed equally to this work and should be considered co-first authors.
Genetic Typing of Classical Swine Fever Virus Isolates from China
Article first published online: 4 JUN 2012
© 2012 Blackwell Verlag GmbH
Transboundary and Emerging Diseases
Volume 60, Issue 4, pages 370–375, August 2013
How to Cite
Sun, S.-Q., Yin, S.-H., Guo, H.-C., Jin, Y., Shang, Y.-J. and Liu, X.-T. (2013), Genetic Typing of Classical Swine Fever Virus Isolates from China. Transboundary and Emerging Diseases, 60: 370–375. doi: 10.1111/j.1865-1682.2012.01346.x
- Issue published online: 9 JUL 2013
- Article first published online: 4 JUN 2012
- Received for publication March 21, 2012
- classical swine fever virus;
- genetic typing;
- Chinese isolates
The E2 genes of 73 classical swine fever virus (CSFV) originated from CSF suspected cases in different regions of China were genetically characterized and compared with reference CSF viruses. All Chinese viruses that characterized were segregated into two major groups and subdivided into four subgroups. Most of isolates (61.6%) belonged to group 2 and were further divided into three subgroups: subgroup 2.1, 2.2 and 2.3. Subgroup 2.1 was the largest subgroup which contained 46.6% of isolates, whiles subgroup 2.3 was the smallest subgroup which contained only one isolate (1.4%). The remaining 38.4% of isolates were classified into subgroup 1.1 within group 1. However, no group 3 and subgroups 1.2 and 1.3 viruses were found in this study. This study has provided epidemiological information useful for assessing the virus origin and establishing a national prevention and control strategy against the disease.