Polyclonal antiserum, also called polyclonal antibody, is the immune serum obtained by immunizing animals with Antigen. Antigen molecules stimulate the immune system, induce a number of B cell clones to be activated, produce neutralizing antibodies and release them into the serum to provide immune protection. This kind of serum containing immunoglobulins that can bind to a variety of antigen epitopes is called Polyclonal serum.
It is suitable for the production of antiserum against different diseases by using different bacteria, viruses and toxins.