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Living with Human African trypanosomiasis

A parasite infection spread by flies in parts of Sub-Saharan Africa, causing fever, swollen glands, and later nervous system problems.

Understanding Human African trypanosomiasis

Human African trypanosomiasis is a parasitic infection caused by Trypanosoma brucei and spread by flies.

It occurs in various regions of Sub-Saharan Africa. Early signs include fever, joint pain, headache, and significant swelling of lymph nodes. If untreated, it can cause anemia and harm the heart, kidneys, hormones, and nervous system. Later, people may have confusion, disrupted sleep, and mental decline. It can begin at any time in life.

Signs & symptoms

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

  • Fever that comes and goes
  • Headache
  • Fatigue
  • Sleep problems and daytime sleepiness
  • Enlarged liver and spleen
  • Itching

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 tests confirm the infection and its stage?
What treatments are used for my stage?
How can others in my household or travel group be protected?

Quick facts

Symptoms usually startany time in life

It is caused by a parasite (protozoa) called Trypanosoma brucei, spread by flies.

Infectious

Also known as: africam sleeping sickness; african sleeping sickness; african trypanosomiasis; sleeping sickness

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Human African trypanosomiasisGARD ID 7826 · 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 Human African trypanosomiasis.

Explore the Human African trypanosomiasis blog

Explore research for Human African trypanosomiasis

Explore actively recruiting Human African trypanosomiasis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Human African trypanosomiasis 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 Human African trypanosomiasis 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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