Pneumococcal Polysaccharide Powder Type 23F (US Type 23)
25-X ™
This purified pneumococcal polysaccharides was manufactured by Merck & Company for small-quantity distribution by ATCC. The pneumococcal powders include types that are components of the current 23-valent vaccine against Streptococcus pneumoniae.
Each of the polysaccharide antigens used in the polyvalent vaccine is extracted and purified separately. These vaccine products can be used to assay for type-specific antibodies, research immune responses, and study immunodeficiencies.