Possible postinfectious immune arthritis: Haemophilus influenzae type b.
D000667:Ampicillin / Q000627:therapeutic use; D001170:Arthritis, Infectious / Q000209:etiology* / Q000276:immunology; D002675:Child, Preschool; D006193:Haemophilus influenzae; D006801:Humans; D008297:Male; D008583:Meningitis, Haemophilus / Q000150:complications* / Q000188:drug therapy
D000667:Ampicillin