title: Failure of tests to detect pneumococcal antigens in urine.
mesh_terms: D000942:Antigens, Bacterial / Q000652:urine*; D003378:Counterimmunoelectrophoresis; D006801:Humans; D007841:Latex Fixation Tests; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D000942:Antigens, Bacterial