Specific antibody deficiency (SAD) is an immune system disorder. It occurs when you have normal levels of antibodies but an insufficient immune response to certain types of bacteria. Antibodies, also ...

Antibodies are one of the most specific tools for the detection and capture of molecular targets­­. The right antibody can play a key role in revealing the presence, quantity, dynamics, and even ...

Immunoglobulin A (IgA) deficiency is the most common primary immunodeficiency in humans. It can increase the risk of allergies, asthma, and autoimmune disease. Primary immunodeficiencies are ...

Rheumatoid factor (RF) is a type of antibody, an immune system protein that helps the body fight foreign substances like bacteria and viruses, called antigens. Antibodies, also known as ...