Streptococcus Pneumoniae Type 1 Capsular Polysaccharide Antigen
A purified capsular polysaccharide antigen derived from Streptococcus pneumoniae serotype 1, used primarily in diagnostic skin testing to assess cell-mediated immune responses to pneumococcal antigens. It is commonly employed as part of multi-test immunological evaluation panels.
A diagnostic antigen used in skin testing to evaluate immune response to Streptococcus pneumoniae.
Key facts at a glance
- RxNorm
- 854930
- Generic
- Streptococcus Pneumoniae Type 1 Capsular Polysaccharide Antigen
- Class
- unclassified
- Brands
- Pneumovax 23
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- prefilled syringe, injection, solution
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Diagnostic skin testing to assess cell-mediated immunity to Streptococcus pneumoniae; may be used as part of multi-antigen panels for evaluating immune function in patients with suspected immunodeficiency.
When applied via intradermal skin test, this antigen elicits a delayed-type hypersensitivity response in individuals previously sensitized to pneumococcal antigens, indicating competent cell-mediated immunity.
For diagnostic use only; should be administered by healthcare professionals trained in skin testing procedures; interpretation of results requires clinical correlation with patient history; not a vaccine or therapeutic agent; evaluate for any prior hypersensitivity to vaccine components.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 31, 2026. · Read our editorial policy