An antigen is any substance that can trigger an immune response in the body. Antigens are typically proteins or polysaccharides that are recognized as foreign or potentially harmful by the immune ...

Do you know your blood type? Scientists say everyone should in case of a life-threatening event that results in a need for a blood transfusion. But now, they've discovered a new group of blood types ...

A new discovery about how cells communicate with each other in the body's immune system has revealed deeper insights for an ...

Researchers showed CD1c presents lipid antigens sideways, not upright. Imaging and mass spectrometry revealed flexible ...

A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body," according to American Red Cross.

A hypersensitivity reaction happens when the immune system mistakenly identifies harmless substances as harmful. There are several types of hypersensitivity reactions, depending on the class of ...

The human body is always coming up with new ways to shock and surprise us, and it turns out that just 50 known people in the ...