Molecular detection of porcine Torque teno virus genogroups 1 and 2 in pigs from partial regions of China
ZHAI Shao-Lun1,2; LONG Jin-Xue1; YUE Cheng2; YUAN Shi-Shan1
1. Department of Swine Infectious Diseases, Shanghai Veterinary Research Institute, China Academy of Agricultural Sciences, Shanghai 200241, China; 2. College of Veterinary Medicine, Xinjiang Agricultural University, Urumuqi 830052, China
Abstract：Torque teno virus (TTV) is an emerging zoonotic DNA virus, which is frequently detected in many vertebrates including humans and livestock. At present, there was little report on PTTV prevalence in China. In order to know the epidemic status of PTTV in China, detection of PTTV1 and PTTV2 in 191 samples from diseased pigs collected from nine different regions were performed. The results showed that 147 samples (77.0%) were positive for PTTV. Among them, 131 samples (68.6%) were positive for PTTV1, 103 samples (53.9%) were positive for PTTV2, and 87 samples (45.5%) were positive for both PTTV1 and PTTV2. Further analysis revealed that infection rates of PTTV in different farms, sample types, pig ages were different. Forty-one serum samples collected from healthy pigs were also detected. The results showed that 18 samples (43.9%) were positive for PTTV. Among them, 15 samples (36.6%) were positive for PTTV1, 10 samples (24.4%) were positive for PTTV2, and 5 samples (12.2%) were positive for both PTTV1 and PTTV2. The results indicated that PTTV had significant higher prevalence in diseased pigs than that in healthy pigs (P<0.01). Whether PTTV plays a role in swine disease or has a synergistic effect with other pathogens should be further studied.
翟少伦, 龙进学, 岳城, 袁世山. 中国部分地区猪细环病毒1型和2型的分子检测[J]. 微生物与感染
, 2010, 5(2): 84-88.
DI Shao-Lun, LONG Jin-Hua, YUE Cheng, YUAN Shi-Shan. Molecular detection of porcine Torque teno virus genogroups 1 and 2 in pigs from partial regions of China. Journal of Microbes and Infections, 2010, 5(2): 84-88.
2010, Vol. 5 
