Why are vaccines used in the prevention but not in the treatment of infections? Why can antivenom serums be used in prevention and treatment?
Vaccines are not used in the treatment of infections due to they depend on the primary immune response that takes about a week to happen and is not so intense and effective. Antivenom serums however are inoculated into the circulation and used as an instant treatment because they are made of a great amount of immunoglobulin (antibodies) which is potent against their respective exact venom.