DOI: 10.36347/sasjm.2022.v08i11.011

Pages: 832-835

Occult hepatitis B virus (OBI) infection is one of the most difficult entities in the field of viral hepatitis. Occult hepatitis B corresponds to the presence of hepatitis B virus DNA in the serum and/or in the liver of a patient despite the negative HBsAg. It is a clinical form usually asymptomatic. Its reactivation is rare and generally occurs in immunocompromised subjects. Occult hepatitis B is a particular form of HBV infection that is attracting increasing attention from clinicians. The objective of this development is to underline the importance of systematically looking for occult hepatitis B in the face of immunosuppression.