Immunoglobulin content in persons with a varying donor record]

The blood level of IgA, IgG Igm, and protein in male donors was studied in connection with the duration of the donor's activity. The content of the main blood immunoglobulin classes and proteins depended significantly on the duration of the donor's activity. Therefore it is not recommended to use donors as control group in determining the immunoglobulin level in the blood.