| Immune Deficiency Foundation: National, non-profit organization to improve the diagnosis and treatment of patients with primary immunodeficiency diseases through research and education. |
| Cd5 - Cd19 PID: Cd5 - Cd19 PID, involves a complete and total lack of response to polysaccharide antibodies and an extremely high expression of Cd5+ B-cells. |
| CGD Home Page: Chronic granulomatous disease website. CGD is an immune system disorder which affects the phagocytes. The website has information and a message board. |
| CIPO Home Page: Canadian Immunodeficiencies Patient Organization Home Page. Information in English and French. |
| How Stuff Works: Immune System: Describes the immune system and discusses related topics such as allergies and AIDS. |
| Immune System Cure: Techniques for supercharging your immune system through diet, stress reduction and nutritional supplements. |
| ImmuneDisease.com: In-depth information for consumers and healthcare professionals on immunology, primary immune deficiency diseases, and treatment with intravenous immune globulin. |
| IPOPI: Official site of the International Patient Association for Primary Immunodeficiencies. |
| Jeffrey Modell Foundation: A non-profit research foundation devoted to primary immune deficiency. |
| Michigan Immunodeficiency Foundation: Information for patients and healthcare professionals on immunology, primary immune deficiency diseases, and treatment with intravenous immune globulin. |
| NORD-National Organization For Rare Disorders: Offering discussions, resources, links, and synonyms for many immune deficiencies. |
| PINSA, Primary Immunodeficiency Network of South Africa: Support for patients and families affected by PID. Includes patient stories, disease facts and diagnostic help. |
| When the Body's Defenses are Missing--Primary Immunodeficiency: Booklet by The National Institute of Child Health and Human Development. |
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