E. coli can be classified by their characteristic virulence propeies and different mechanisms that cause disease. To which group does the verotoxin producing E. coli 0157:H7 serotype belong?
E. coli 0157:H7 serotype belongs to EHEC. EHEC Highly virulent serotype. Has low infectious dose (10-100 bacilli). Produce a verotoxin similar to Shiga toxin. Causes hemorrhagic colitis, HUS. Principal cause of acute kidney failure in children.
Enteroaggregative E. coli (EAEC)
Enterohemorrhagic E. coli (EHEC)
Enteroinvasive E. coli (EIEC)
Enteropathogenic E. coli (EPEC)
Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli)