File:Antibody.svg · Wikimedia Commons · See Wikimedia Commons
Also known as Ab, antibodies
thumb|upright=1.2|Each antibody binds to a specific antigen in a highly specific interaction analogous to a lock and key.
An antibody is a protein your body makes that attaches to specific harmful invaders like viruses or bacteria, recognizing them much like a key fits into a lock. This matters because antibodies help your immune system identify and fight off these threats, which is essential for protecting you from getting sick.
AI-generated from the Wikipedia summary — may contain errors.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).