Acquisition Guide âââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ Chapter 42.5 Attachment 1 CMP Template 18 5.10 Contractor Litigation Management Address the contractor litigation management process and include contract references to legal management requirements.
An antigen is a substance or molecule that, when introduced into the body, triggers the production of an antibody by the immune system, which will then kill or neutralize the â¦ antigen that is recognized as a foreign and potentially harmful invader.
Antigens are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria. Nonliving substances such as toxins, chemicals, drugs, and foreign particles (such as a splinter) can also be antigens. The immune system recognizes and destroys, or tries to destroy, substances that contain antigens. Your body's cells have proteins that are antigens. These include a group of antigens called HLA antigens. Your immune system learns to see these antigens as normal and usually does not react against them.