Antibodies are large Y-shaped proteins produced by plasma cells that use the immune system to identify and neutralize foreign objects and substances, such as bacteria and viruses. Antibodies recognize a unique part of a foreign target called an antigen. Antibodies are proteins from the group of globulins that are created in mammals as a reaction to foreign substances that have penetrated the body. These foreign substances are neutralized by antibodies, which are defensive substances that create a stimulated immune system.
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