Antibody profiling of bloodstains.

The detection and measurement of antibodies in bloodstains represents a departure from the classical blood grouping used routinely in forensic serology. The antibodies in question are those associated with atopic allergy and infections by micro-organisms and other parasites. The production of these antibodies is not primarily under genetic control but reflects an individual's reaction to his environment. This paper describes the explicit information which may be obtained from an antibody profile, the high discriminating power and other advantages of the method.