Escherichia coli


See 'Additional Information'
See 'Additional Information'

General Information

First Line Treatment

  • Ceftriaxone

  • Cefazolin

  • Cefepime

ESBL-producing strains

  • Ertapenem

Alternate Treatment

  • Fluoroquinolone

  • Aminoglycoside

  • Pip/tazo


  • Aztreonam

Pathogen information

Fermenting gram negative rod, of the Enterobacteriaceae family


Normal GI flora - most predominant gram negative bacillus

Associated syndromes

An exhaustive list.

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

Additional Information

Contact precautions if resistant to meropenem or imipenem

Treatment of choice for ESBL strains is a carbapenem

Suspected/confirmed verotoxigenic infection (i.e. 0157-H7) requires notification of Public Health immediately