Chemoprophylaxis for contacts of Haemophilus influenzae meningitis.
D002675:Child, Preschool; D005190:Family; D006193:Haemophilus influenzae; D006801:Humans; D008581:Meningitis / Q000382:microbiology; D008583:Meningitis, Haemophilus / Q000517:prevention & control*