Fermenting gram negative rod, of the Enterobacteriaceae family
Normal GI flora - most predominant gram negative bacillus
Most common cause of UTI.
Also common: intra-abdominal infection/abscess, nosocomial pneumonia, bacteremia, prosthetic device infection
Myriad other manifestations - note endocarditis is rare
Gastroenteritis, ranging from travelers diarrhea to invasive infection with hemolytic-uremic syndrome
Suspected/confirmed verotoxigenic infection (i.e. 0157-H7) requires notification of Public Health immediately