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Escherichia coli
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Revision as of 11:05, 9 February 2008
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11:05, 9 February 2008
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*Enteroinvasive ''E. coli'':
*Enteroinvasive ''E. coli'':
**Cause colisepticaemia in calves during their first week of life; occasionally in lambs, piglets and puppies
**Cause colisepticaemia in calves during their first week of life; occasionally in lambs, piglets and puppies
−
**Dysentry-like strains
**Infection via ingestion or umbilicus; inadequate colostrum increases susceptibility
**Infection via ingestion or umbilicus; inadequate colostrum increases susceptibility
**Invade epithelial cells of small intestine by inducing endocytosis
**Invade epithelial cells of small intestine by inducing endocytosis
**Traverse gut wall to lamina propria and enter lymphatics
**Traverse gut wall to lamina propria and enter lymphatics
−
**Bacteraemia or septicaemia and endotoxaemia
follow
+
**Resistant to complement-mediated killing
+
**Bacteraemia or septicaemia and endotoxaemia
+
**Widespread petechial haemorrhages of organs and serosa
+
**Abscesses, pneumonia in long term
**Death occurs in absense of treatment
**Death occurs in absense of treatment
*Enterohaemorrhagic ''E. coli'':
*Enterohaemorrhagic ''E. coli'':
Flawrence
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