title: Emergence of rifampin-resistant Haemophilus influenzae after prophylaxis.
mesh_terms: D002648:Child; D002675:Child, Preschool; D002701:Chloramphenicol / Q000494:pharmacology; D004352:Drug Resistance, Microbial; D004357:Drug Synergism; D006193:Haemophilus influenzae / Q000187:drug effects*; D006801:Humans; D007223:Infant; D008583:Meningitis, Haemophilus / Q000517:prevention & control*; D008826:Microbial Sensitivity Tests; D009154:Mutation; D012293:Rifampin / Q000494:pharmacology / Q000627:therapeutic use*; D014295:Trimethoprim / Q000494:pharmacology
chemical_list: D002701:Chloramphenicol; D014295:Trimethoprim; D012293:Rifampin