title: Failure of a single dose of ceftriaxone to eradicate nasopharyngeal colonization of Haemophilus influenzae type b.
mesh_terms: D002443:Ceftriaxone / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D006193:Haemophilus influenzae / Q000187:drug effects / Q000302:isolation & purification; D006801:Humans; D008583:Meningitis, Haemophilus / Q000517:prevention & control*; D009305:Nasopharynx / Q000382:microbiology*; D012293:Rifampin / Q000627:therapeutic use
chemical_list: D002443:Ceftriaxone; D012293:Rifampin