See page 8 of the Guide for Contract Management Planning for information on written and oral direction. Formal communications with the Contractor Include in this section technical direction to the contractor, correspondence instructions, and correspondence controls and tracking systems.
Antibodies (also known as immunoglobulins, abbreviated Ig) are gamma globulin proteins that are found in blood or other bodily fluids of vertebrates, and are used by the immune system to identify and neutralize foreign objects, such as bacteria and viruses.
How Do Antigens and Antibodies Work: The Immune Response. To better understand the difference between antigen and antibody, it helps to become familiar with the immune response. All healthy adults have thousands of various antibodies in small amounts throughout their body.