title: Pneumolysin and antipneumolysin.
mesh_terms: D000293:Adolescent; D000328:Adult; D000937:Antigen-Antibody Reactions; D002648:Child; D002675:Child, Preschool; D006460:Hemolysin Proteins / Q000494:pharmacology*; D006801:Humans; D007106:Immune Sera / Q000494:pharmacology; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000276:immunology; D013296:Streptococcus pneumoniae
chemical_list: D006460:Hemolysin Proteins; D007106:Immune Sera