Classification and disease-10

Classification and disease-10 - Bacterial Classification...

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Unformatted text preview: Bacterial Classification and Disease Paul A. Gulig, Ph.D. Purpose To provide an overview of how physicians think when confronted with a bacterial infection To alert you to the importance of bacterial classification in treatment The importance of knowing the etiology of organ system based infection and the Gram stain Purpose Some microbiology courses teach infectious diseases in a "bug parade" - Here are all of the gram-positive cocci, and here's what they do. Here are their random virulence factors, ... That is not our philosophy (see Schaechter). This lecture provides that framework for students who want the bug parade organization. Purpose The detail in this lecture is NOT to be memorized for exams. The principles ARE testable. Bacterial Classification Based on several major properties Gram stain (and other stains) Morphology Metabolic behavior (e.g., oxygen) Infection patterns (e.g., zoonoses) Obligate intracellular Antigenic composition DNA sequence Metabolic properties May influence the type of disease caused, but not necessarily Anaerobes have a greater propensity to cause abscesses Mycobacterium tuberculosis is an obligate aerobe affects tissue tropism Acid fast organisms grow slowly - chronic infections Vibrio vulnificus grows fast - rapid progression Bacterial classification Cell morphology Shapes...
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This note was uploaded on 07/02/2011 for the course MMC 6500 taught by Professor Gulig during the Spring '11 term at University of Florida.

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Classification and disease-10 - Bacterial Classification...

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