title: Pneumococcal vaccine in otitis media.
mesh_terms: D001428:Bacterial Vaccines / Q000276:immunology; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D010033:Otitis Media / Q000209:etiology / Q000517:prevention & control*; D011008:Pneumococcal Infections; D013296:Streptococcus pneumoniae / Q000276:immunology*; D014611:Vaccination
chemical_list: D001428:Bacterial Vaccines