Aerobic gram positive bacilli
Important bacterial pathogen in neonates, pregnant women (most commonly in third trimester), elderly, and immunocompromised patients.
Foodborne illness associated with deli meat, soft cheeses, unpasteurized milk, and others.
Often occurs in outbreaks
Habitat of Listeria is the soil and decaying vegetable matter
Self-limited gastrointestinal illness with diarrhea
Reproductive Infectious Disease consultation recommended to assist in evaluation/management.
Notify Public Health ASAP
Infections in adults are thought to result from oral ingestion and subsequent intestinal mucosal penetration and systemic infection
Listeria crosses the placenta in maternal bacteremia and infects the fetus
- This can lead to fetal death, preterm birth, and neonatal infection (sepsis, meningitis, death)