Streptococcus Pneumoniae Serotype 6A Conjugate Vaccine
This is a conjugate vaccine designed to protect against Streptococcus pneumoniae serotype 6a, a bacterial strain that can cause serious infections such as pneumonia, meningitis, and bloodstream infections. The vaccine works by conjugating the capsular antigen of serotype 6a to the diphtheria CRM197 protein, which enhances the immune response particularly in young children whose immune systems may not respond adequately to polysaccharide antigens alone. It is used as part of pneumococcal immunization strategies for individuals at risk of pneumococcal disease.
A conjugate vaccine targeting pneumococcal serotype 6a that uses diphtheria CRM197 protein to enhance immune protection.
Key facts at a glance
- RxNorm
- 901633
- Generic
- Streptococcus Pneumoniae Serotype 6a Capsular Antigen Diphtheria Crm197 Protein Conjugate Vaccine
- Class
- unclassified
- Brands
- Prevnar 20, Vaxneuvance, Capvaxive, Prevnar 13
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- prefilled syringe
- 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 6a. May be used in pediatric populations or immunocompromised individuals as part of comprehensive pneumococcal vaccination programs.
The vaccine contains purified capsular polysaccharides from S. pneumoniae serotype 6a chemically conjugated to the diphtheria CRM197 protein carrier. This conjugation converts a T-cell independent antigen into a T-cell dependent antigen, eliciting stronger antibody responses and immunological memory, particularly in young children.
This vaccine targets a single pneumococcal serotype and may be used alongside other serotype-specific or broader pneumococcal vaccines to provide comprehensive coverage. As with all vaccines, complete immunization history and potential contraindications should be reviewed before administration. Adverse reactions may include injection site reactions, fever, and irritability.
Official drug label
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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 30, 2026. · Read our editorial policy