If the blood type is not a match, you can experience a transfusion reaction. You can also have a transfusion reaction if you receive blood containing infectious microbes, if you experience an allergic ...

Allergic reactions are a serious condition many Americans face due to an abnormal immune response in the body that, in some cases, can result in death. An allergic reaction occurs when the immune ...

Drug hypersensitivity reactions are drug reactions which are unpredictable. They result from an interaction between a drug substance and the immune system of a hypersensitive person. Hypersensitivity ...

Most people experience no complications during a blood transfusion, but some have adverse reactions during or after treatment. Examples include a fever, chills, itching, or breathing difficulty.

Rheumatoid arthritis is associated with an atypical immune response called a type 3 hypersensitivity reaction. This reaction happens due to immune complexes in the body. It can be treated by ...