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One morning in March 2020, Terez Giuliana sat down to compose an email to her daughter. In the subject line, she wrote, “If I die.” Giuliana, 65, of Philadelphia, has common variable immune deficiency ...

Primary immunodeficiency (PI) not only increases your risk of frequent and serious infections, but can also make you more likely to develop autoimmune diseases — conditions where the immune system ...

Primary immunodeficiency (PI) is a group of more than 400 disorders that affect the immune system. In people with PI, the immune system is weakened or missing important components, making it harder ...

As we age, the immune system’s efficacy weakens, leading to less effective defences against new pathogens—such as the SARS-CoV-2 virus. How immunosenescence in older adults affects their immune ...

Immunodeficiency disorders are immune system malfunctions that may prevent a person's body from defending itself against disease or infection. When you purchase through links on our site, we may earn ...

Hypogammaglobulinemia is a condition when a person has very low levels of antibodies called immunoglobulins. Someone with this condition may experience frequent infections, such as pneumonia or ...

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 ...

While its reputation is at times dismissed as folklore or the efforts of orange juice marketing campaigns, vitamin C’s ...

Forty years ago, the successful treatment of leukemia patients with a Vitamin A derivative raised hopes for its effectiveness ...