[High prevalence of TT virus (TTV) infection and gene subtype analysis between Japanese and Chinese]
Related Experiment Video
Updated: Oct 5, 2026

Bacterial Artificial Chromosomes: A Functional Genomics Tool for the Study of Positive-strand RNA Viruses
Published on: December 29, 2015
1Common Laboratory of Second Affiliated Hospital, Medical College of Shantou University, Shantou 515041, China.
Objective:
To compare the infection rates and gene subtypes of TTV between Japanese and Chinese.
Methods:
TTV was detected by a semi-nested PCR. The positive samples were sequenced directly.
Results:
Infection rate of T'TV in normal Chinese was 64%, but in the patients suffered from chronic C hepatitis, the infection rates were 68% in Chinese and 49.1% in Japanese The gene subtype of TTV Gla + 1b in Chinese was 40%, G2a+ 2b 60%; in Japanese TTV Gla+ 1b was 78.6%, G2a+ 2b 21.4%.
Conclusions:
There were high infection rates of TTV in Chinese and Japanese. The gene subtype distribution of TTV had some difference between Chinese and Japanese.
