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Specific Antibody Deficiencies.

Luke A Wall1, Victoria R Dimitriades1, Ricardo U Sorensen1

  • 1Section of Allergy Immunology, Department of Pediatrics, Louisiana State University Health Sciences Center, Jeffrey Modell Center for Primary Immunodeficiencies, 200 Henry Clay Avenue, New Orleans, LA 70118, USA.

Immunology and Allergy Clinics of North America
|October 12, 2015
PubMed
Summary
This summary is machine-generated.

Specific antibody deficiency (SAD) impairs immune responses to polysaccharide antigens, leading to frequent sinopulmonary infections. Diagnosis involves pneumococcal vaccine challenge, with tailored treatments and generally good prognoses, especially in children where it may resolve.

Keywords:
Immunoglobulin replacementPneumococcal polysaccharide vaccineRecurrent sinopulmonary infectionsSpecific antibody deficiencyVaccine failure

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Area of Science:

  • Immunology
  • Clinical Medicine

Background:

  • Specific antibody deficiency (SAD) is characterized by impaired immune responses to polysaccharide antigens.
  • Patients with SAD frequently suffer from severe, prolonged, or recurrent sinopulmonary infections.

Purpose of the Study:

  • To define the diagnostic criteria and management strategies for specific antibody deficiency.
  • To highlight the heterogeneity of SAD phenotypes and treatment approaches.

Main Methods:

  • Diagnosis is confirmed via immunologic challenge using the 23-valent pneumococcal polysaccharide vaccine in individuals aged 2 years and older with intact immunity.
  • Assessment involves evaluating the immunologic response to polysaccharide antigens.

Main Results:

  • SAD encompasses diverse immunologic phenotypes.
  • Treatment plans are individualized based on symptom severity.

Conclusions:

  • Specific antibody deficiency necessitates tailored treatment strategies.
  • The prognosis for most SAD patients is favorable, with potential for resolution, particularly in pediatric cases.