Cat-scratch fever

An uncommon disease that develops after a scratch or bite by a cat. Three quarters of cases occur in children. The fever is due to infection with a small bacterium called. The main symptom, appearing after 3–10 days, is a swollen lymph node near the bite or scratch. The node may become painful and tender, and an infected blister may develop at the site of the injury. A fever, rash, and headache may occur. Diagnosis is confirmed by biopsy of the swollen lymph node and a skin test. Analgesic drugs (painkillers) may be used to relieve the fever and headache.