pathogenicity - • Heat stable • Lo toxicity • Fever...

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1 Disease • Signs • Symptoms Etiology • Infection • Pathogen • Virulence Behavior Treponema pallidum
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2 Portals of Entry The microbes’ view: Infectious Dose 50% (ID 50 ) ID 50 What’s the ID 50 ?
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3 Toxins
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4 • Gram + • Metabolic product • Protein • Specific action • Heat labile • Hi toxicity • No fever • Small LD 50 • Gram - • Structural, LPS • Lipid A • General action
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Unformatted text preview: • Heat stable • Lo toxicity • Fever • High LD 50 Enzymes 5 Gastric (peptic) and duodenal ulcers are caused by A. Diet. B. Excess acid production. C. Stress. D. A bacterial infection. E. A, B, and C above. The iron race 6 Cytopathic effects What happened? Protozoa 7 Fungi Algae Helminths...
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This note was uploaded on 03/18/2010 for the course BIOL 240 taught by Professor Staff during the Spring '08 term at Skyline College.

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pathogenicity - • Heat stable • Lo toxicity • Fever...

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