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Hepatitis TT virus infection in high-risk groups
Y Poovorawan1, A Theamboonlers, P Jantaradsamee
1Dept. of Pediatrics, Faculty of Medicine, Chulalongkorn University and Hospital, Bangkok, Thailand.
Infection
|December 23, 1998
Summary
The TT virus (TTV) is more prevalent in high-risk populations, including intravenous drug users and those with chronic liver disease. Further research is needed to understand the clinical significance of TTV infection.
Area of Science:
- Hepatology
- Virology
- Molecular Biology
Background:
- The TT virus (TTV) is a novel, parenterally transmitted hepatitis virus.
- TTV has been detected in patients with unexplained hepatitis, suggesting a potential role in liver disease.
Purpose of the Study:
- To investigate the prevalence of TT virus (TTV) in various high-risk groups.
- To compare TTV frequency in high-risk individuals versus control groups (blood donors, pregnant women).
Main Methods:
- Serum samples were collected from different risk groups and control populations.
- DNA was extracted from sera and analyzed using polymerase chain reaction (PCR) with semi-nested primers to detect TTV DNA.
Main Results:
- TTV DNA was detected at higher frequencies in high-risk groups: chronic liver disease (18%), hepatocellular carcinoma (9.2%), intravenous drug users (32.7%), thalassemia patients (18.8%), and prostitutes (9.7%).
- Prevalence in control groups was lower: voluntary blood donors (7%) and pregnant women (6.8%).
Conclusions:
- TT virus (TTV) shows a higher prevalence in populations at risk for blood-borne viral infections.
- Further molecular studies are essential to elucidate the short- and long-term clinical implications of TTV infection.