text_1: How do you interpret a positive hepatitis B surface antigen (HBsAg) with a negative hepatitis B surface antibody (HBsAb), positive core antibody (HBcAb)?  Should you check serologies or just enzymes and ultrasound?  Should he get Hepatitis B immunization?
text_2: How do you interpret a positive hepatitis B surface antigen (HBsAg) with a negative hepatitis B surface antibody (HBsAb) and positive core antibody (HBcAb)?