Transfer factor for the practicing allergist-immunologist.

: As continuing research elucidates the underlying mechanisms of immunological disease at the cellular level the need for the clinical allergist-immunologist to have available tools for the manipulation of cellular mechanics in the form of immunosuppression and immunostimulation becomes more apparent. An immunostimulant of perhaps wide application in the future is transfer factor derived from human lymphocytes. This presentation outlines in general the characteristics of transfer factor and a detailed method of production of transfer factor in a crude form is described. The procedure does not require specialized equipment and is simple enough so that interested clinical allergist-immunologists can produce transfer factor in their own laboratories and thus augment their armamentarium with an immunostimulant agent for use in selected cases.