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Target intelligence / Profile preview
Haemophilus influenzae type b Polysaccharide-Protein Conjugate (Hib conjugate vaccine)
- Target
- Hib conjugate vaccine
- Molecular classification
- Vaccine antigen, Polysaccharide-protein conjugate
01
Overview
The Haemophilus influenzae type b (Hib) polysaccharide-protein conjugate transforms an otherwise weakly immunogenic bacterial capsule into a highly effective vaccine antigen by linking it with an immunostimulatory protein. This innovation has dramatically reduced rates of severe childhood infections caused by Hib worldwide through safe and durable protection when included in routine vaccination programs.
- Other names
- Hib vaccinePRP-conjugate vaccineHaemophilus influenzae type b vaccine
02
Mechanism of action
Stimulates the immune system to produce antibodies against the Hib capsular polysaccharide. The protein carrier enhances T-cell dependent immune response.
03
Biological functions
Induction of humoral immunityB cell activationT cell activation (via carrier protein)Antibody productionImmunological memory
04
Disease associations
Prevention of Haemophilus influenzae type b infectionsPrevention of meningitisPrevention of sepsisPrevention of pneumonia
05
Safety considerations
Local injection site reactionsFeverRare allergic reactions
06
Biomarkers
Anti-PRP antibody titersIgG levels specific to Hib polysaccharide
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