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Politics are unaffected by the evolving nature of the American citizenry.
Lymphocytes
White blood cells that circulate through the lymph system and bloodstream, helping the body identify and destroy antigens and cancer cells.
Antigens
Substances that the immune system recognizes as foreign or dangerous, leading to an immune response.
Bacterium
Single-celled microorganisms that are often beneficial but can also cause infections.
Virus
A microscopic infectious agent that replicates only inside the living cells of an organism.
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