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Living with Angiostrongyliasis

A foodborne infection from rat lungworm that causes a type of meningitis, found in Southeast Asia and the Pacific Islands.

Understanding Angiostrongyliasis

Angiostrongyliasis is a foodborne infection caused by the rat lungworm, Angiostrongylus cantonensis.

It is found mainly in Southeast Asia and the Pacific Islands. People catch it by eating infective larvae on vegetables or in raw or undercooked snails, slugs, land crabs, freshwater shrimp, frogs, or lizards. The main feature is eosinophilic meningitis, caused by worms moving from the intestines to the lungs, central nervous system, and eyes. It can occur at any time in life.

Signs & symptoms

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

  • Fever
  • Headache
  • Stiff neck
  • Tiredness (fatigue)
  • Vomiting and belly pain
  • Double vision

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
Which foods or places may have exposed me?
Which tests confirm this infection?
Which specialists, such as an infectious disease doctor, should I see?

Quick facts

Symptoms usually startany time in life

GARD says it is caused by the rat lungworm, which people catch by eating infective larvae in contaminated food.

Infectious

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · AngiostrongyliasisGARD ID 683 · 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 Angiostrongyliasis.

Explore the Angiostrongyliasis blog

Explore research for Angiostrongyliasis

Explore actively recruiting Angiostrongyliasis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Angiostrongyliasis 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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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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