**Toxins are inactivated to produce a toxoid which will still have the [[Adaptive Immune System - WikiBlood#Antigen Recognition|antigens]] needed to produce an immune response but will not be harmful to the host | **Toxins are inactivated to produce a toxoid which will still have the [[Adaptive Immune System - WikiBlood#Antigen Recognition|antigens]] needed to produce an immune response but will not be harmful to the host |