Chronic hepatitis B virus infection in an anti‐HBC–nonreactive blood donor: Variant virus or defective immune response?
Jae‐Hag Lee, Teresa G. Paglieroni, Paul V. Holland, Jerome B. Zeldis – 1 July 1992 – Viral sequence and host immune response were investigated in an unusual, asymptomatic chronic hepatitis B virus carrier (human leukocyte antigen type A24, Bw61, Bw62, Bw6, DRw11, DRw52, DQw7) who was consistently nonreactive for antibody to HBc and had a normal ALT level over a 5‐yr study period. The precore and core region DNA sequences of virus isolated from his serum had seven silent mutations that resulted in no changes in the amino acid sequence of the adr HBsAg subtype.