Fever and arthritis.
D000208:Acute Disease; D001168:Arthritis / Q000150:complications*; D001170:Arthritis, Infectious / Q000150:complications; D001171:Arthritis, Juvenile / Q000150:complications / Q000175:diagnosis; D002675:Child, Preschool; D002805:Chondrocalcinosis / Q000150:complications; D003937:Diagnosis, Differential; D005335:Fever of Unknown Origin / Q000209:etiology*; D006069:Gonorrhea / Q000150:complications; D006073:Gout / Q000150:complications; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications; D010488:Polyarteritis Nodosa / Q000150:complications; D011379:Prognosis; D012213:Rheumatic Fever / Q000175:diagnosis; D013203:Staphylococcal Infections / Q000150:complications