Gram-negative facultative anaerobic rods

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Enterohaemorrhagic E. coli (EHEC) • Symptoms: -serious bloody enteritis, affecting primarily the colon -haemolytic uremic syndrome (HUS): haemolytic anaemia with acute renal failure • Transmission: food (beef, milk), contact • Pathogenesis: - adhesion factors - toxins: „Shiga-like” (SLT) – damaging capillaries; transmitted by phages; demonstration: PCR • Most important serotype: O157 – strains usually sorbitol <strong>negative</strong> • Therapy: antibiotics, fluid replacement
Enteroaggregative E. coli (EAEC) • Attachment to epithelial cells is associated with the aggregation of the bacteria • Symptoms: serious watery diarrhea chronic diarrhea • Pathogenicity factors: pili, fimbriae • The fimbriae aggregate human collagen, fibronectin, laminin • Identification: demonstration of pathogenicity factors by PCR → underdiagnosed
Page 1 and 2: The normal gastrointestinal flora G
Page 3 and 4: The normal human gastrointestinal f
Page 5 and 6: Ingestion of lactobacillus strain r
Page 7 and 8: Enterobacteriaceae: most important
Page 9 and 10: Klebsiella pneumoniae Klebsiella ox
Page 11 and 12: Eosin-methylene blue agar Selective
Page 13 and 14: SSI Bi VA Klebsiella DC EM Br
Page 15 and 16: Klebsiella growing on blood agar pl
Page 17 and 18: Serratia marcescens growing on bloo
Page 19 and 20: Uropathogenic E. coli • Causes 90
Page 21 and 22: Enterobacteriaceae: Antibiotic resi
Page 23 and 24: β-lactamase enzymes The most impor
Page 25 and 26: Conditions promoting the developmen
Page 27 and 28: Genetic susceptibility to infection
Page 29 and 30: Enteropathogenic (dyspepsia) E. col
Page 31: Enteroinvasive E. coli (EIEC) • S
Page 35 and 36: Vibrionaceae family • Most import
Page 37 and 38: Vibrio cholerae • Natural habitat
Page 39 and 40: Cholera (2) • Diagnosis: isolatio
Page 42 and 43: Other vibrios • Halophile vibrios
Page 44 and 45: Campylobacter - Gram stain
Page 46 and 47: Recorded cases of campylobacterosis
Page 48 and 49: Helicobacter pylori • About 50% o
Page 50 and 51: Therapy: Helicobacter pylori - ceph
Page 52 and 53: Helicobacter pylori: pathogenicity
Page 54: Thank you for your attention

Gram-negative facultative anaerobic rods

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