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Living with Listeriosis

An infection caused by Listeria bacteria that mainly affects newborns, older adults, pregnant women, and people with weak immune systems.

Understanding Listeriosis

Listeriosis is an infection caused by the bacteria Listeria monocytogenes.

It mainly affects newborns, elderly people, pregnant women, and people with low immunity. It can spread through unpasteurized milk or contaminated vegetables, or from mother to baby during pregnancy or delivery. Pregnant women typically have only fever and flu-like symptoms, but the infection can cause pregnancy complications and severe infection in the newborn.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Fever
  • Chills
  • Headache
  • Tiredness (fatigue)
  • Muscle aches
  • Meningitis (inflammation around the brain)

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
What can I do to avoid exposure to Listeria during pregnancy?
What symptoms should make me contact my care team right away?
Should my newborn be checked after an infection in pregnancy?

Quick facts

Symptoms usually startany time in life

It is caused by Listeria monocytogenes bacteria. It is often spread through food, and it can pass from mother to baby. It is not described as an inherited condition.

Infectious

Also known as: circling disease; infection by listeria monocytogenes; infection caused by listeria; listerellosis; listeria infection; listeria monocytogenes caused disease or disorder

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · ListeriosisGARD ID 6915 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Listeriosis.

Explore the Listeriosis blog

Explore research for Listeriosis

Explore actively recruiting Listeriosis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Listeriosis with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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I can help you find recruiting Listeriosis studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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