Listeria monocytogenes

Listeria monocytogenes


General Information

Ampicillin (with or without gentamicin)


  • Meropenem

  • Linezolid

Aerobic, gram-positive bacilli

  • Usually causes infection in neonates, pregnant women, elderly, and immunocompromised patients

  • Outbreaks associated with deli meat, soft cheeses, unpasteurized milk, and others

  • Meningitis

  • Bacteremia

  • Septic abortion/miscarriage/stillbirth

  • Gastroenteritis

Dexamethasone should be avoided in patients with Listeria meningitis as it is associated with worse outcomes