Immunodeficiency with factor I anomaly

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Synonyms: Complete factor I deficiency

A rare genetic primary immunodeficiency disease characterized by increased susceptibility to recurrent usually severe infections (particularly by Neisseria meningitidis Haemophilus influenzae and Streptococcus pneumoniae) typically manifesting as otitis sinusitis bronchitis pneumonia and/or meningitis. Autoimmune disease (e.g. systemic lupus erythematosus glomerulonephritis) and atypical hemolytic uremic syndrome may be associated. Laboratory serum analysis reveals in addition to diminished or undetectable complement factor I variably decreased complement C3 complement factor B and complement factor H.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version July 2024

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Immunodeficiency with factor I anomaly?

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Advocacy Organizations

Accessia Health Foundation

Accessia Health pioneered the patient assistance model for people living with chronic medical conditions. We provide financial assistance to pay for prescriptions, medical treatments and expenses, travel and insurance premiums. Our program services include healthcare education, specialized legal services, and case management. We’re leveraging our three decades of our entrepreneurial spirit to expand patient assistance support to serve today’s healthcare consumers. Serving diverse populations is our #1 goal and we seek partners who share our belief that all people deserve to have access to healthcare. Over $1.1 billion has been distributed to patients throughout the country, helping them navigate their way through the complexities of the healthcare system. You can help us do even more.

Ukrainian Association of Pediatric Immunology

Development of pediatric and clinical immunology in Ukraine. Raising awareness of inborn errors of immunity in Ukraine and rare immune diseases; Advocacy campaigns supporting patients with rare immune diseases and their treatment plans; Scientific research; Sharing knowledge about immunoprophylaxis; Advocacy campaigns supporting immunoprophylaxis.

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Clinical Trials

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