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Pneumococci growing on blood agar, illustrating α hemolysis and optochin sensitivity (zone around optochin disk). Inset: Gram’s stain, illustrating gram-positive.

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Presentation on theme: "Pneumococci growing on blood agar, illustrating α hemolysis and optochin sensitivity (zone around optochin disk). Inset: Gram’s stain, illustrating gram-positive."— Presentation transcript:

1 Pneumococci growing on blood agar, illustrating α hemolysis and optochin sensitivity (zone around optochin disk). Inset: Gram’s stain, illustrating gram-positive diplococci. (Photographs courtesy of Paul Turner, University of Oxford, United Kingdom.) Source: PNEUMOCOCCAL INFECTIONS, Harrison's Infectious Diseases, 3e Citation: Kasper DL, Fauci AS. Harrison's Infectious Diseases, 3e; 2017 Available at: Accessed: November 08, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved

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