Misleading hepatitis B serology following Rho (D) immune globulin (human) injection and influenza vaccine | Clinics and Practice

Having a hepatitis B surface antibody (HBsAb) titre of more than 10 mIU/mL after hepatitis B vaccination is generally considered to confer immunity to hepatitis B. This case report discusses an unusual case of a false positive hepatitis B core total antibody (HBcAb) following administration of either Rho (D) immune globulin (Human) injection or influenza vaccine in a patriuent who was previously immunised against hepatitis B