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Features include always present findings: Recurrent bronchitis, Partial absence of specific antibody response to unconjugated pneumococcus vaccine, Combined immunodeficiency, and Recurrent sinusitis and others; and very common findings: Decreased circulating IgG concentration. 23 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Blood and immune system | 5 | Autoimmunity, Recurrent bacterial infections, Enlarged spleen (splenomegaly) |
TNFRSF13B function has not been fully characterized.
Immunodeficiency, common variable, 2 is caused by mutations in the TNFRSF13B gene on chromosome 17.
Genetic testing for TNFRSF13B is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for immunodeficiency, common variable, 2 has been reported in the published literature.
Phenotype severity distribution: 6 always present features, 1 very common feature.
No clinical trials have been registered for immunodeficiency, common variable, 2.
145 publications have been identified in PubMed for immunodeficiency, common variable, 2. Research spans Epidemiology / Natural History (27%), Case Report / Case Series (21%), and Basic Science / Preclinical (20%).
Research Type | Count | % of Total |
|---|---|---|
Disease patterns and progression | 39 | 27% |
Data assembled from 6 of 12 sources · Last updated Sep 18, 2026, 7:11 PM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
Lungs and breathing | 4 | Recurrent bronchitis, Recurrent pneumonia, Partial absence of specific antibody response to unconjugated pneumococcus vaccine |
Digestive system | 3 | Enlarged liver (hepatomegaly), Enlarged spleen (splenomegaly), Diarrhea |
Neoplasm | 1 | Neoplasm |
Brain and nerves | 1 | Meningitis |
Lab test results | 1 | Partial absence of specific antibody response to unconjugated pneumococcus vaccine |
Eyes | 1 | Conjunctivitis |
Ears | 1 | Recurrent otitis media |
Patient case studies
31 |
21% |
Laboratory research | 29 | 20% |
Research summaries | 21 | 14% |
Clinical study results | 13 | 9% |
Testing and diagnosis research | 9 | 6% |
Other research | 2 | 1% |
New treatment approaches | 1 | 1% |
Gorospe L (2026). [PMID: 41539073](https://pubmed.ncbi.nlm.nih.gov/41539073/). *Med Clin (Barc)*. [Other]
Mason LCE (2026). [PMID: 41563836](https://pubmed.ncbi.nlm.nih.gov/41563836/). *Microb Genom*. [Review / Meta-Analysis]
Jones DH (2026). [PMID: 41659931](https://pubmed.ncbi.nlm.nih.gov/41659931/). *Clin Case Rep*. [Case Report / Case Series]
Ho HE (2026). [PMID: 41608052](https://pubmed.ncbi.nlm.nih.gov/41608052/). *J Hum Immun*. [Basic Science / Preclinical]
Jehanne Q (2026). [PMID: 41994285](https://pubmed.ncbi.nlm.nih.gov/41994285/). *Front Microbiol*. [Basic Science / Preclinical]
Briassouli E (2026). [PMID: 41909668](https://pubmed.ncbi.nlm.nih.gov/41909668/). *Front Immunol*. [Review / Meta-Analysis]
Corvilain E (2026). [PMID: 41762359](https://pubmed.ncbi.nlm.nih.gov/41762359/). *J Clin Immunol*. [Epidemiology / Natural History]
Genc Ozbay Z (2026). [PMID: 41693687](https://pubmed.ncbi.nlm.nih.gov/41693687/). *Expert review of clinical immunology*. [Epidemiology / Natural History]
de Los Santos FP (2026). [PMID: 41415419](https://pubmed.ncbi.nlm.nih.gov/41415419/). *bioRxiv : the preprint server for biology*. [Basic Science / Preclinical]
Donà MG (2026). [PMID: 41121983](https://pubmed.ncbi.nlm.nih.gov/41121983/). *Cancer Prev Res (Phila)*. [Diagnostic / Biomarker]