Haemophilus parainfluenzae meningitis in a 4-year-old boy.
D000667:Ampicillin / Q000627:therapeutic use; D002675:Child, Preschool; D006190:Haemophilus; D006801:Humans; D008297:Male; D008581:Meningitis / Q000188:drug therapy / Q000209:etiology*
D000667:Ampicillin