2011_Micro301_Lecture25_Slides

2011_Micro301_Lecture25_Slides - 01/12/11 Escherichia coli...

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01/12/11 1 Micro 301, Lecture 25: Gastrointestinal parasites (cont.) Escherichia coli – pathogenic strains a.ka. STEC STEC = Shiga Toxin-Producing E. coli EAEC = Enteroaggregative E. coli Micro 301, Lecture 25: Gastrointestinal parasites (cont.) Escherichia coli O104:H4 outbreak Germany & France, May-June 2011 Source: alfalfa sprouts (fenugreek seeds, Egypt) 3091 STEC diarrheal cases ~25% HUS (mostly adults) 50 deaths Micro 301, Lecture 25: Gastrointestinal parasites (cont.) Salmonella gastroenteritis Salmonella sp. • Gram negative rod (enterobacteria) • Facultative anaerobe • Motile • Reservoir: humans or animals Inflammatory diarrhea www.ifr.ac.uk Micro 301, Lecture 25: Gastrointestinal parasites (cont.) Non-typhoidal Zoonosis • Typhimurium, Enteritidis, and others • Enteroinvasive • 6-72 h Incubation; subsides ~48-72 h • Symptoms Diarrhea (bloody) Severe abdominal cramps Vomiting (~40%) • Self-limiting (except in immuno- compromised patients) • Sequelae – reactive artritis (2-15%) Typhoidal Human reservoirs Typhi and Paratyphi serovars • Enteroinvasive
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This note was uploaded on 03/08/2012 for the course MICROM 301 taught by Professor Lara during the Fall '08 term at University of Washington.

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2011_Micro301_Lecture25_Slides - 01/12/11 Escherichia coli...

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