The split antigens are used in the laboratory for testing.

Antigenic shift is a process that occurs when two or more different strains of a virus combine to form a new subtype with a mixture of the surface antigens of the original strains.

The Australia antigen is used to detect hepatitis B infection.

The presence of Australia antigens in the blood indicates a possible infection.

The immune system recognizes self-antigens as part of the body's own cells.

The immune system recognizes self-antigens as harmless.

The group specific antigens are essential for identifying different strains of the virus.

The group specific antigen is used to identify specific groups of cells.

Prostate-specific antigen is a protein produced by the cells of the prostate gland.

Prostate-specific antigens are used as biomarkers for prostate cancer.