MT4 - E. COLI GENERAL (R) Flashcards
Lack of colostrum is an important predisposing factor in diseases in young animals caused by E. coli.
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No colostral immunity
poor hygiene
overcrowding
stress
Certain verotoxigenic Escherichia coli strains can be zoonotic.
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through consumption of food or water, or contact with infected animals
Enterotoxigenic Escherichia coli strains are responsible for oedema disease
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diarrhea and other gastrointestinal illnesses
oedema disease: (STEC) –> verotoxin or Shiga toxin
Detection of virulence factors of E.Coli is important in the diagnostics diseases caused by E.coli.
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E. coli can cause haemorrhagic enteritis of humans
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faeces of asymptomatic cattle can be the source of infection with zoonotic Escherichia coli:
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Per os antibiotics are recommended for the treatment of neonatal coli diarrhoea of calves
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for enteric diseases
E. coli septicemia is caused by verotoxigenic strains
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Fimbria can be virulence factors of E. coli strains
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fimbra, capsule, LT, ST, verotoxins
LT toxin can be virulence factor of some E. coli strains.
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fimbra, capsule, LT, ST, verotoxins
Enterotoxigenic E. coli strains cause diarrhoea in neonatal animals
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instinal / diarrhegenic
The enterotoxigenic E. coli strains cause neonatal diarrhoea in calves and piglets
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The enterotoxins of E. coli inhibit the protein synthesis.
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verotoxins inhibit protein synthesis !
The enterotoxigenic E. coli strains have fimbria as adhesins
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adhesins:Fimbra, outer membrane proteins, fibronectine receptors
The verotoxigenic E. coli strains cause septicaemia of calves.
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Endotoxins are the virulence factors of E. coli causing septicaemia
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Fimbria is the virulence factor of enterotoxic E. coli strains
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Verotoxins are the virulence factors of enterotoxic E. coli strains.
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E. coli (VTEC) or Shiga toxin-producing E. coli (STEC).
Fimbria is the virulence factor of enteropathogenic E. coli strains.
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enterotoxigenic strains
Enteropathogenic E. coli strains mainly damage the villi
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E. coli strains always cause generalized infections in animals.
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Enterotoxins of E. coli cause severe inflammation in the small intestines
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Enteropathogenic Escherichia coli strains cause neonatal diarrhoea in calves and piglets
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In piglets, rabbits, dog and cats
Enteropathogenic Escherichia coli strains damage the microvilli.
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Verotoxigenic Escherichia coli strains can cause disease in pigs
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Pigs, calves , dogs and cats
Verotoxigenic Escherichia coli strains frequently cause septicaemia in chicken
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Endotoxin is a virulence factor of Escherichia coli
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capsule, fimbria, endotoxin, exotoxin, verotoxin etc..
Enterotoxins and fimbria are virulence factors enterotoxigenic Escherichia coli strains.
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adhesive factors: fimbira + enterotoxin
Verotoxins are virulence factors of septicemic Escherichia coli strains.
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Enterotoxins are virulence factor enteropathogenic Escherichia coli strains
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it is enterotoxigenic
Enterotoxic E. coli strains attach to enterocytes
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The enterotoxic E. coli strain produces verotoxins
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The enterotoxic E. coli strains cause oedema disease.
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(STEC) or verotoxigenic E. coli (VTEC) cause oedema disease
Enterotoxic E. coli strains attach to enterotoxins
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attach to enterocytes
Enterotoxic E. coli strains produce fimbriae
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Enterotoxigenic E. coli strains produce fimbriae
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Enterotoxin cause enteritis in the large intestine.
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the small intestine
Enterotoxigenic E. coil strains produce fimbria and enterotoxins.
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Verotoxins inhibit protein synthesis
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inhibit protein synthesis = give endothelial damage
Verotoxins damage the endothelial cells
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inhibit protein synthesis = give endothelial damage
