Serum

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Serum (Latin for "whey") may refer to:

  • Medication, derived from an animal's blood or serous fluid, often involving:
    • Antibody, protein used by the immune system to identify and neutralize foreign objects like bacteria and viruses
    • Antivenom, biological product used in the treatment of venomous bites or stings
    • Antiviral drug, used specifically for treating viral infections
    • Antidote, substance which can counteract a form of poisoning