[High prevalence of TT virus (TTV) infection and gene subtype analysis between Japanese and Chinese].
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.
Liu
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W
Common Laboratory of Second Affiliated Hospital, Medical College of Shantou University, Shantou 515041, China.
Hada
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T
Xu
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H
D001483:Base Sequence; D002681:China / Q000453:epidemiology; D004266:DNA Virus Infections / Q000453:epidemiology* / Q000821:virology; D004279:DNA, Viral / Q000235:genetics; D005814:Genes, Viral / Q000235:genetics*; D005838:Genotype; D019698:Hepatitis C, Chronic / Q000150:complications*; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D022783:Torque teno virus / Q000235:genetics*
D004279:DNA, Viral