90% 成年後感染乙型肝炎的人,免疫係統在急性期成功抵抗感染.感染時間長自愈難.急性自愈多.

https://www.sfcdcp.org/infectious-diseases-a-to-z/hepatitis-b/#:~:text=In%2090%25%20of%20persons%20who,the%20rest%20of%20their%20life.

https://www.plannedparenthood.org/learn/stds-hiv-safer-sex/hepatitis-b/how-do-i-get-treated-hepatitis-b#:~:text=There's%20no%20cure%20for%20hepatitis,%2Dlasting)%20hepatitis%20B%20infection.