
The 13-valent Pneumococcal Polysaccharide Conjugate Vaccine (PCV13-TT) is formulated by compounding the capsular polysaccharide antigen of Streptococcus pneumoniae serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F, individually conjugated to tetanus toxoid carrier protein. The individual polysaccharides are extracted from the cultures of Streptococcus pneumoniae, and purified through centrifugation, precipitation, and ultrafiltration. The polysaccharides are chemically activated and derivatized, and then conjugated to tetanus toxoid carrier protein to form the glycoconjugate, with aluminum phosphate as adjuvant. The vaccine should be shaken well to obtain a homogenous milky white suspension. During storage, a white deposit and clear supernatant might be observed due to adjuvant precipitation.
Active substances: capsular polysaccharides of Streptococcus pneumoniae serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F conjugated to tetanus toxoid carrier protein.
Excipients/Inactive Ingredients: Sodium chloride, sodium dihydrogen phosphate, disodium hydrogen phosphate, and aluminum phosphate.