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Review Question - QID 100491

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QID 100491 (Type "100491" in App Search)
Fifteen years ago, a physician was exposed to Mycobacterium tuberculosis during a medical mission trip to Haiti. A current CT scan of his chest reveals respiratory apical granulomas. The formation of this granuloma helped prevent the spread of the infection to other sites. Which pair of cells contributed to the walling-off of this infection?