丙型肝炎抗体阳性是什么病，严重吗？怎么治疗?需要做

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丙型肝炎抗体阳性是什么病，严重吗？怎么治疗?需要做些什么检查，可以说的详细点吗?
另外丙型肝炎抗体阳性会传染吗？这种病是怎么感染的，病人早期会有什么感觉吗？可以的你详细点吗?
一般治疗需要多长时间有效呢？
如果怀孕了会传染给小孩吗？