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Haemophilus influenzae type b capsule polysaccharide PRP-T (PRP-T)

Target: PRP-T
Molecular classification: Polysaccharide-protein conjugate, Capsular polysaccharide

Overview

Haemophilus influenzae type b (Hib) capsule polysaccharide PRP-T is a conjugate vaccine component. The PRP polysaccharide, unique to Hib type b strains, is conjugated to tetanus toxoid (T) to enhance immunogenicity in infants. The PRP capsule is a virulence factor that protects the bacterium from host immune defenses. Vaccination with PRP-T induces a robust antibody response, preventing invasive Hib diseases like meningitis and pneumonia.

Other names: Hib conjugate vaccinePolyribosyl-ribitol-phosphate tetanus toxoid conjugateHib vaccine

Mechanism of action

Induction of T-cell dependent immune response through B cell and T cell stimulation, leading to antibody production against PRP.

Biological functions

Bacterial virulence factorEvasion of host immunityAntigenInduction of antibody response

Disease associations

InfectionHaemophilus influenzae type b disease (meningitis, pneumonia, etc.)

Safety considerations

General vaccine-related adverse reactions (e.g., fever, local reactions)

Interacting drugs

Hib conjugate vaccines (e.g., PRP-T containing vaccines)

Biomarkers

Anti-PRP antibody titers

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