Primary Immunodeficiency Specialists in Ali, Delhi

Primary Immunodeficiency refers to a group of over 400 rare, genetically inherited disorders in which part of the immune system is missing or functions improper…

What is Primary Immunodeficiency?

Primary Immunodeficiency refers to a group of over 400 rare, genetically inherited disorders in which part of the immune system is missing or functions improperly, leaving affected individuals more vulnerable to infections, autoimmune disease, and certain cancers. Unlike secondary immunodeficiencies caused by external factors like HIV or medications, these conditions result from inborn errors in immune system genes present from birth. Severity ranges widely from mild forms that cause occasional infections to severe combined immunodeficiencies that are life-threatening in infancy without treatment. Early diagnosis and specialized care significantly improve outcomes and quality of life.

Severity

Severe

Prevalence

Rare — collectively affects an estimated 1 in 1,200 to 2,000 people

Contagious

Causes of Primary Immunodeficiency

Caused by inherited genetic mutations that impair the development or function of components of the immune system, such as antibodies, white blood cells, or complement proteins. Most primary immunodeficiencies are present from birth due to specific gene defects, and family history significantly raises the likelihood of these inherited conditions.

Symptoms of Primary Immunodeficiency

Frequent or unusually severe infections, infections that don't respond well to standard antibiotic treatment, recurrent pneumonia or sinus infections, poor growth in infants and children, chronic diarrhea, delayed healing of wounds, autoimmune symptoms, family history of similar recurrent infections

Treatment & Types of Primary Immunodeficiency in Ali, Delhi

Treatment depends on the specific defect and may include regular immunoglobulin replacement therapy to provide antibodies the body cannot produce, prophylactic antibiotics to prevent infections, and in severe cases, bone marrow or stem cell transplantation to restore normal immune function. Prompt and aggressive treatment of infections is essential given the impaired ability to fight them naturally.

Primary immunodeficiencies are grouped by which part of the immune system is affected: antibody deficiencies, the most common group, where the body cannot make enough functional antibodies; combined immunodeficiencies, involving both T-cell and B-cell dysfunction, including severe combined immunodeficiency, which is life-threatening in infancy without treatment; phagocyte defects, affecting the cells that engulf and destroy pathogens; and complement deficiencies, affecting proteins that help antibodies and phagocytes clear infections. Severity ranges widely across these more than 400 recognized disorders, from mild forms causing only occasional infections to severe forms requiring transplantation in infancy.

Allergy & Immunology Specialists in Ali, Delhi (0)

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Frequently Asked Questions

Is primary immunodeficiency the same as having HIV or a weak immune system from medication?

No, primary immunodeficiencies are inborn genetic conditions present from birth, unlike secondary immunodeficiencies caused by external factors such as HIV infection or immunosuppressive medications. This distinction matters because the underlying cause and treatment approach differ considerably.

Can primary immunodeficiency be cured?

Some forms, particularly severe combined immunodeficiency, can be effectively cured with bone marrow or stem cell transplantation, while most other forms are managed long-term with immunoglobulin replacement and preventive antibiotics rather than cured outright. Newer gene therapies are also emerging for select conditions.

What symptoms should prompt testing for primary immunodeficiency?

Frequent or unusually severe infections that don't respond well to standard antibiotics, recurrent pneumonia or sinus infections, or poor growth in a child alongside a family history of similar infections are key warning signs. A referral to an allergy and immunology specialist is warranted when these patterns are present.

Is primary immunodeficiency hereditary?

Yes, it results from inherited genetic mutations, and family history significantly raises the likelihood of these conditions, though the exact inheritance pattern varies by the specific disorder. Genetic testing can identify the mutation and inform testing of at-risk relatives.

Can someone with primary immunodeficiency receive vaccines?

This depends on the specific defect, since certain live vaccines may need to be avoided in people with significant combined immunodeficiency, while inactivated vaccines are generally recommended where appropriate. An immunologist should guide the vaccination schedule individually for each patient.

Learn more about Primary Immunodeficiency (symptoms, causes, treatment)

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