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.
Afluria vaccine (flu shot) is a killed virus vaccine. Afluria works by exposing you to a small dose of the virus, which helps your body to develop immunity to the disease. Afluria vaccine will not treat an active infection that has already developed in the body.