Pathogens
Listeria monocytogenes

Listeria monocytogenes

Susceptibilities

General Information

Aerobic gram positive bacilli.

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

Foodborne illness associated with deli meat, soft cheeses, unpasteurized milk, and others.

Often occurs in outbreaks.

Severe/Invasive disease: 

  • Meningitis
  • Meningoencephalitis
  • Bacteremia
  • Endocarditis

Non-invasive disease: 

  • Febrile gastroenteritis

Often resolves without treatment.

Treatment recommended if immunocompromised, elderly, or pregnant (amoxicillin or TMP-SMX).

Infectious Disease consultation recommended.