| a novel subgenotype of torque teno virus 1 (ttsuv1) in slaughter pigs in china. | 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 t ... | 2013 | 23990369 |
| a taqman-based real-time pcr for detection and quantification of porcine parvovirus 4. | porcine parvovirus 4 (ppv4) is a dna virus, and a member of the parvoviridae family within the bocavirus genera. it was detected recently in swine, but its epidemiology and pathology remain unclear. a taqman-based real-time pcr (qpcr) targeting a conserved region of the orf3 gene of ppv4 was developed. the qpcr detection limit was 9.5 × 10(1) dna copies/μl. there was no cross-reaction with porcine parvovirus, torque teno virus 1, torque teno virus 2, porcine circovirus type 1, porcine circovirus ... | 2015 | 25813599 |
| diagnostic investigation of porcine periweaning failure-to-thrive syndrome: lack of compelling evidence linking to common porcine pathogens. | porcine periweaning failure-to-thrive syndrome (pfts), an increasingly recognized syndrome in the swine industry of north america, is characterized by the anorexia of nursery pigs noticeable within 1 week of weaning, and progressive loss of body condition and lethargy during the next 1-2 weeks. morbidity caused by pfts is moderate, but case fatality is high. the etiology of pfts is presently unknown and may include infectious agent(s), noninfectious factors, or both. pfts was identified in a hig ... | 2011 | 22362939 |
| comparison of diversity of torque teno virus 1 in different mucosal tissues and disorders. | diversity of ttv1 was assessed in the head and neck region in patients with potentially malignant (oral lichen planus, oral leukoplakia) and malignant lesions (oral and laryngeal squamous cell cancers) and was compared to that found in the uterine cervix (cervical atypia and cervical cancer) by directly sequencing the ng061-063 segment of orf1. these sequences were classified by the formerly used genogroupgenotype system as well as by the newly accepted species classification by aligning with th ... | 2011 | 22207290 |