"- 1.Plasma B cells are like sophisticated 3D printing xerox machines... they have special genes and proteins that allow them to copy any foreign material transferred to them (most of the time its some protein that doesnt belong in your body). So they scan the foreign material, and print a specific "antibody" that matches the antigen. Once these antibodies are built, they can be released into your blood or lymphatic system or tissues in order to help defend your body. This would be considered as the initial (primary) step. "
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