â¢ Peptides are short linear chains of amino acids, whereas proteins are very long chains of amino acids. â¢ Several amino acids are linked together to form a peptide by peptide bonds, while several peptides are linked together to form protein molecules.
Mechanism of Action. Hiberix is a non-infectious vaccine used to prevent Haemophilus influenzae type b (Hib) infection in children. The vaccine works by causing the body to produce its own protection (antibodies) against the disease.
The reconstituted vaccine preparation also contains lactose, sodium chloride and water for injection. The HIBERIX Hib polysaccharide is extracted from a culture of Haemophilus influenzae type b strain 20,752. After activation with cyanogen bromide and derivatisation with an adipic hydrazide spacer, the Hib polysaccharide is coupled to tetanus toxoid via carbodiimide condensation.