Traditional Culture Encyclopedia - Traditional festivals - Why do we inject an antigen into animals and produce antibodies with strong specificity and poor purity?

Why do we inject an antigen into animals and produce antibodies with strong specificity and poor purity?

Because each type of B lymphocyte can produce an antibody, there are millions of B lymphocytes in the human body, which means that millions of antibodies can be produced. Although you were injected with antigen, only one B lymphocyte produced the corresponding antibody. Therefore, antibodies extracted from animal serum by traditional methods often have poor specificity and low purity. Generally, the preparation method of monoclonal antibody is adopted.