title: Chronic "low-level" hepatitis B virus carrier with probable infectivity.
mesh_terms: D002353:Carrier State / Q000097:blood / Q000276:immunology*; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D006509:Hepatitis B / Q000276:immunology* / Q000635:transmission; D006515:Hepatitis B virus / Q000276:immunology; D006801:Humans