ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2012, Vol. 43 ›› Issue (3): 424-430.

• 预防兽医 • Previous Articles     Next Articles

The Prevalence of Torque Teno Sus Virus and Porcine Circovirus 2 Coinfection in Pigs

XIA Yingju, ZI Zhanchao, CAI Lin, HAN Xue, ZHAI Xinyan, TIAN Kegong, NI Jianqiang*

  

  1. China Animal Disease Control Center, Beijing 100125
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-03-28 Published:2012-03-28
  • Contact: NI Jianqiang

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Abstract:

The aim of this study was to investigate the prevalence of porcine circovirus 2 (PCV2) and Torque teno sus virus (TTSuV) coinfection in China, 1898 swine serum samples were collected from 29 provinces in China in 2009 and detected for TTSuV1, TTSuV2 and PCV2 by PCR. 1 103 samples were TTSuV positive (58%), 435 samples were PCV2 positive (23%). Among the positive samples, 275 (14%) samples were both positive for PCV2 and TTSuV, including 249 (13%) infected with both TTSuV1 and PCV2, 200 (10%) infected with both TTSuV2 and PCV2, and 174 were triple infection. These results suggested that coinfection of TTSuV and PCV2 was highly prevalent in China. Distribution analyses of positive pig herds demonstrated that there were significant difference in different regions, and the breed pattern might not be a factor of aggravation in the coinfection.

Key words: porcine cirovirus 2, torque teno sus virus, coinfection