2023年9月6日 · Antibody deficiency disorders are genetic diseases that impair one's ability to produce normal antibodies, making one prone to repeated infections.

2022年3月12日 · Primary immunodeficiency disorders — also called primary immune disorders or primary immunodeficiency — weaken the immune system, allowing infections and other health problems to occur more easily.

An IgG deficiency is a health problem in which your body doesn’t make enough Immunoglobulin G (IgG). People with IgG deficiency are more likely to get infections. When your body feels it is under attack, it makes special proteins called immunoglobulins or antibodies.

Individuals with specific antibody deficiency have normal levels of antibodies (immunoglobulins) but cannot produce antibodies to specific types of microorganisms that cause respiratory infections. Among the five classes of immunoglobulins, IgG has the biggest role in protecting against infection.

People with selective antibody deficiency with normal immunoglobulins have frequent sinus and lung infections. Doctors diagnose the disorder by measuring immunoglobulin levels in the blood and by evaluating how well people respond to vaccines.

2024年1月25日 · Learn about the similarities and differences between different types of antibody deficiencies, like common variable immune deficiency (CVID), agammaglobulinemia, and specific antibody deficiency (SAD).

2024年5月24日 · Selective IgA deficiency is the lack of a disease-fighting antibody in the immune system called immunoglobulin A (IgA). People with this condition usually have typical levels of other immunoglobulins (im-u-no-GLOB-u-lins).

The most common types of primary antibody deficiency include common variable immune deficiency (CVID), X-linked agammaglobulinemia (XLA), hyper IgM syndromes, selective IgA deficiency, IgG subclass deficiency and specific antibody deficiency.

Learn about the symptoms, diagnosis, and treatment of antibody deficiencies. To make an appointment, call 877-426-5637.

Selective antibody deficiency with normal immunoglobulins (Ig) is characterized by deficient specific antibody response to polysaccharide antigens but not to protein antigens, despite normal or near-normal serum levels of immunoglobulins, including IgG subclasses.