结论孕产妇中存在TTV感染，并可能通过母婴传播的途径感染胎儿。
Conclusions There is a possibility of vertical maternal fetal transmission of TTV.
在低年龄组人群中，母婴传播是主要的传播途径。
Among the lower age group, vertical transmission is the major transmission route.
目的探讨孕产妇输血传播病毒（TTV）感染率及其在母婴间的传播途径。
Objective To observe the transfusion transmitted virus (TTV) infection rate in gravidas and parturients, and explore the route of maternal fetal transmission.
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