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Living with Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis

A rare genetic condition with repeated fevers and infections, starting in infancy.

Understanding Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis

Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis is a rare genetic condition with long-term inflammation and a weak immune system.

It causes recurring fever in the newborn or infant period and combined immunodeficiency, with repeated viral infections and invasive bacterial infections. Muscle amylopectinosis (a starch-like buildup in muscle) may cause no symptoms, or may lead to muscle or heart muscle disease.

Signs & symptoms

GARD doesn't list a symptom list for this condition, but its summary describes these features:

  • Recurring fevers
  • Repeated viral infections
  • Repeated serious bacterial infections
  • Possible muscle disease
  • Possible heart muscle disease

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

    Specialists who may be involved include autoimmune and inflammatory disease specialists, allergy and immune system specialists and genetic specialists.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Immune Deficiency Foundation may keep lists of experts for this condition.

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists); Allergy and immune system specialists (allergists / immunologists); Genetic specialists (geneticists)
Expert care
Expert lists: Immune Deficiency Foundation
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 Immune Deficiency Foundation
  • 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
How should infections be prevented and treated?
Should the heart and muscles be checked regularly?
Would genetic testing help our family?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive

GARD says changes in genes (also called variants) cause this condition. It is autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

Genetic

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosisGARD ID 17494 · 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 Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis.

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