title: Natural history of otitis media.
mesh_terms: D000367:Age Factors; D000407:Alabama; D000917:Antibody Formation; D000918:Antibody Specificity; D000941:Antigens / Q000032:analysis; D001428:Bacterial Vaccines / Q000302:isolation & purification; D002648:Child; D002675:Child, Preschool; D005455:Fluorescent Antibody Technique; D006193:Haemophilus influenzae / Q000302:isolation & purification; D006801:Humans; D007075:Immunoglobulin M; D004930:Inuit; D010033:Otitis Media / Q000453:epidemiology / Q000276:immunology / Q000382:microbiology; D013022:South Carolina; D013291:Streptococcus / Q000276:immunology / Q000302:isolation & purification; D014611:Vaccination
chemical_list: D000941:Antigens; D001428:Bacterial Vaccines; D007075:Immunoglobulin M