Please note: This is for information only.

Refer to local guidelines for treatment recommendations




  • A group of Gram-negative bacilli, also referred to as enterobacteria
  • They are commensals of the gut
  • The group includes E coli, Enterobacter, Proteus, Klebsiella and others.
  • There are no major infection control hazards normally. However, infection control precautions must be taken with strains resistant to multiple antibiotics.

Main clinical infections:

  • Urinary tract infections, both community and hospital.
  • May also cause ventilator-associated pneumonia
  • Wound infections or intra-abdominal abscesses, usually in association with other bacteria.
  • Biliary tract infections.
  • All the above may lead to septicaemia.

Usually sensitive to:

  • Cephalosporins
  • Gentamicin
  • Ciprofloxacin
  • Tazocin
  • Imipenem / meropenem
  • Trimethoprim

Usually resistant to:

  • Amoxicillin
  • Some strains are resistant to multiple antibiotics, including cephalosporins, gentamicin and quinolones.