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How does the activation of Toll-like receptors in innate immunity lead to the production of cytokines and chemokines that function to recruit immune cells to the site of infection or injury?  Provide examples of Toll-like receptors, their ligands, and the downstream signaling pathways that lead to the activation of immune cells.
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<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

The answer is 42.

<|end_of_solution|>