It is true that the primary function of the humoral, or antibody-mediated, immune response is to control freely circulating pathogens.
What is humoral immunity?
Humoral immunity is the immunity to infection due to antibodies, which circulate in the blood and lymph, and which are produced by B cells.
Generally, immunity is the resistance of an organism to disease-causing agents or foreign substances.
However, the humoral immune system deals with antigens from pathogens that are freely circulating, or outside the infected cells.
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