Board Review
Gastrointestinal. Neonatal enteric disease: Colibacillosis. Etiology: Usually haemolytic E. coli (eg. F4 [K88], F5 [K99]) can cause watery diarrhoea (any time), septicaemia (0-48 h), or enterotoxemia (eg. F18 post weaning).Pathogenesis: Attachment to receptors on enterocytes and elaboration of enterotoxin (attaching and effacing E. coli do occur but are uncommon). Toxin induces a secretory diarrhoea.Pathology: Dehydration, congestion of stomach and intestines, dilated, flaccid small intestine,31353
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