Re: Vaccines are serums?

Serum and vaccines differ in how they prevent infection. Serum is defined as, “an amber-colored, protein-rich liquid that separates out when blood coagulates. The blood serum of an animal, used especially to provide immunity to a pathogen or toxin by inoculation or as a diagnostic agent”. A vaccine is defined as, “a substance used to stimulate the production of antibodies and provide immunity against one or several diseases, prepared from the causative agent of a disease, its products, or a synthetic substitute, treated to act as an antigen without inducing the disease.
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