question: My father went for blood screening last month because he keep on having mild to high fever in space of short time. the result came out ok except the Hep B screening. The doctor said he is having Hepatitis B infection and need 3 vaccination jab.the result are HBs Antigen - nonreactive , HBs antiboby 80MIU/ML with comment booster dose might be considered.From my knowledge when surface antigen non reactive, its mean my father doesnt have HepB infection. and the presence of surface antibody means he either have the infection before or have had vaccination done in the past.If that is true, is my father now considered as the Hep B carrier? He is 73 yrs old and he love to share food with his grandchild.