Streptococcus Pneumoniae Type 14 Capsular Polysaccharide Antigen
Streptococcus Pneumoniae Type 14 Capsular Polysaccharide Antigen is a vaccine component derived from the sugar coating of pneumococcal bacteria. It stimulates the immune system to produce protective antibodies against pneumococcal infections caused by serotype 14. This antigen is included in pneumococcal conjugate vaccines to help prevent serious diseases like pneumonia, meningitis, and bloodstream infections in vaccinated individuals.
A vaccine antigen that induces immunity against Streptococcus pneumoniae serotype 14 to prevent pneumococcal diseases.
Key facts at a glance
- RxNorm
- 854938
- Generic
- Streptococcus Pneumoniae Type 14 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.
Prevention of invasive pneumococcal disease, pneumonia, and otitis media caused by Streptococcus pneumoniae serotype 14. Used as part of pneumococcal conjugate vaccines in both pediatric and adult populations per recommended immunization schedules.
The capsular polysaccharide antigen is conjugated to a carrier protein to enhance immune response. It stimulates B-cells to produce type-specific antibodies that recognize and neutralize pneumococcal bacteria, providing protective immunity against serotype 14 infection.
This is a vaccine component, not a standalone medication. Part of combination vaccines; individuals with severe allergic reactions to any vaccine component should consult a healthcare provider. Timing and need for pneumococcal vaccination varies by age, risk factors, and vaccination history.
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