The carrier will gradually show hepatitis symptoms in his twenties or thirties, which could become life-threatening cirrhosis or liver cancer in his forties or fifties.
帶原者在二、三十歲時慢慢出現肝炎疾病，到四、五十歲又可能轉成肝硬化、肝癌等致命危機，總計帶原者罹患肝癌的比例竟高達 6 成，等於每 10 位就有 6 位。