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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Chronic granulomatous disorder is due to defect in -
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The correct answer is  Chronic granulomatous disease is a fatal genetic disorder in which there is deficiency of NADPH oxidase. In these patients, leucocytes phagocytose invading bacteria normally but are unable to kill ingested micro organisms because engulfment of bacteria is not followed by activation of oxygen dependent killing mechanism. Reference : Baveja text book of microbiology, 4th edition, Pg no: 153 <\p>