Selective Antibody Deficiency
OVERVIEW: What every practitioner needs to know Selective Antibody Deficiency (SAD), also known as specific antibody deficiency or partial antibody deficiency with impaired polysaccharide responsiveness, is a primary immune deficiency disease (PIDD) resulting from an individual’s inability to make antibodies to polysaccharide antigens found within encapsulated bacteria. Total immunoglobulin (Ig) levels and other assessments of…
