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Figure 40-2. Impression smear from the lung of a patient fatally infected with L pneumophila serogroup 1, demonstrating many thin, Gram-negative bacilli (arrows).

Figure 40-2Impression smear from the lung of a patient fatally infected with L pneumophila serogroup 1, demonstrating many thin, Gram-negative bacilli (arrows)

These bacteria stain less intensely with safranin than do enteric bacilli.

From: Chapter 40, Legionella

Cover of Medical Microbiology
Medical Microbiology. 4th edition.
Baron S, editor.
Copyright © 1996, The University of Texas Medical Branch at Galveston.

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