title: Pneumococcal vaccine: a tool for the evaluation of the B-cell function of the immune system.
mesh_terms: D000368:Aged; D000907:Antibodies, Bacterial / Q000276:immunology; D001402:B-Lymphocytes / Q000276:immunology*; D001428:Bacterial Vaccines; D005069:Evaluation Studies as Topic; D006801:Humans; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D001428:Bacterial Vaccines