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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