title: IMMUNIZATION with pneumococcus polysaccharide.
mesh_terms: D000368:Aged; D004040:Dietary Carbohydrates; D006801:Humans; D007114:Immunization; D011134:Polysaccharides; D013296:Streptococcus pneumoniae; D014611:Vaccination
chemical_list: D004040:Dietary Carbohydrates; D011134:Polysaccharides