Objective: The aim of this study is to find out the prevalence of TTV in the cryptogenic hepatitis' and the clinical features of TTV infected patients.
Methods: TTV DNA in the serum was tested by nested PCR and the clinical data was analyzed.
Results: Infection rate of the TTV in cryptogenic hepatitis was 38.6%. It was a sporadic disease, and involved mainly the adults, with no sexual difference. The symptoms were notable, often with jaundice, but the level of transaminase were elevated moderately. Histology revealed the portal area inflammation. If accompanied with other disease, the illness would be exacerbated.
Conclusion: TTV would be accounted for part of the reason in patients with cryptogenic hepatitis.