A Novel Subgenotype of Torque teno Virus 1 (TTSuV1) in Slaughter Pigs in China

作者：Huang Jinhai^*; Li Yi; Liu Mengmeng; Xia Yihe; Li Zhirong

来源：Food and Environmental Virology, 2013, 5(4): 226-230.

DOI：10.1007/s12560-013-9126-0

• TTsuV 1
• 5 '-UTR
• Molecular epidemiological investigation

TTsuV1 can cause persistent infection and unidentified clinical signs in pigs. In this study, a survey of TTsuV1 prevalence was conducted in slaughter pigs from Henan, Liaoning, and Shandong provinces in China. A total of 180 swine lymphoid tissues were assayed by PCR with primers targeting the conserved 5'-untranslated region (5'-UTR). The results showed that a 17.8 % positive rate, and different genotypes were detected. TTSuV1 presented higher viral load and prevalence in inguinal lymph node than in submandibular lymph node samples. All TTsuV1 isolates have 84-100 % nucleotide sequence homology in the 5'-UTR region and can be grouped into three subgenotypes (TTsuV1(a-1), TTsuV1(a-2), and TTsuV1(b)). Notably, the novel genetic subtype TTsuV1(b) was first reported in slaughter pigs.

• 出版日期2013-12
• 单位天津大学