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TTV病毒是一种最近在非甲-非戊型肝炎患者血清中发现的新的病毒。关于它的自然史和在儿童中的传播途径,目前还了解得很少。为了检测血清中
The TTV virus is a new virus recently found in the serum of non-A-non-hepatitis E patients. Little is known about its natural history and its transmission among children. In order to detect the serum