And the age of infection is a principal factor determining whether a person will become a chronic carrier, "says Chen, pointing out that the earlier the age of hepatitis B infection, the fewer the symptoms, but also the greater the likelihood of becoming a carrier.
而感染的年齡，正是決定是否成為慢性帶原的主要因素。」陳定信指出，B 肝在年齡越小的時候感染越沒有症狀，但也越容易變成帶原者。