National Center for Biotechnology Information NCBI NLM MEDLINE humans pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't adult female male aged middle aged 80 and over Antigens sensitivity and specificity community-acquired infections / microbiology pneumonia pneumococcal / diagnosis* pneumococcal / microbiology streptococcus pneumoniae / isolation & purification* time factors bacterial / isolation & purification* chromatography a torres pneumococcal / urine* nasopharynx / microbiology community-acquired infections / diagnosis* pmid:12608431 doi:10.1183/09031936.03.00058802 m a marcos m t jiménez de anta acquired immunodeficiency syndrome / microbiology acquired immunodeficiency syndrome / urine community-acquired infections / urine* hiv-1 / isolation & purification immunologic techniques