Molecular evolution of hepatitis C virus in China: A nationwide study
2018
Huang, K. | Chen, J. | Xu, R. | Jiang, X. | Ma, X. | Jia, M. | Wang, M. | Huang, J. | Liao, Q. | Shan, Z. | Dailey, C. | Song, X. | Lu, L. | Li, C. | Rong, X. | Zhang, M. | Fu, Y.
The evolutionary and epidemic history and the regional differences of hepatitis C virus (HCV) are complex and remain unclear in the vast territory China. Here we recruited 1540 HCV-RNA positive patients sampled in 29 provinces across whole China, which is the largest sample capacity and the most comprehensive geographic coverage of China to our knowledge. 1b, 2a, 3b, 6a and 3a were the major subtypes in China. 1b was the most predominant subtype which presented in every province. The second most predominant subtype, 2a, appeared to concentrate in the north of China. Subtypes 3a and 3b were mainly found in the Southwest region, while 6a was restricted in the South region. We further estimated the origins of the dominating subtypes and discovered for the first time that a Chinese-specific transmission pattern for some strains of subtype 2a which was restricted in north China, and Chinese subtype 3b originated from Thailand.
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