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What role of macrophages play. in provid...

What role of macrophages play. in providing immunity to humans ?

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The Macrophages are among the hrst cells that respond to the infection. They engulf the microbes and display the latter as antigen to alert the lymphocytes. The macrophage secretes endrogenous pyrogen and activates and stimulates the T cells and B cells. It causes fever to slow down microbial activity.
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