Co-occurrence of hepatitis B surface antigen of a particular subtype and antibody to a heterologous subtypic specificity in the same serum.
D000914:Antibodies, Viral / Q000032:analysis*; D000918:Antibody Specificity; D003378:Counterimmunoelectrophoresis; D006385:Hemagglutination Inhibition Tests; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans
D000914:Antibodies, Viral; D006514:Hepatitis B Surface Antigens