When fighting an infectious agent, the immune system may make antibodies to that agent that cross- react with similar self- antigens. This mechanism of autoimmunity is called

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Molecular mimicry occurs when the immune system makes antibodies against an infectious agent, and these antibodies also recognize and bind to similar antigens found on the body's own cells, leading to an autoimmune response. This happens because the infectious agent contains proteins or epitopes that closely resemble those of the host's tissues.

When Fighting an Infectious Agent, the Immune System May Make