Cat Scratch Fever is an infectious disease caused by the bacterium Bartonella henselae, which is often transmitted through scratches or bites from infected cats. Symptoms can include swollen lymph nodes, fever, fatigue, and headaches. Most healthy individuals recover without treatment, but some may experience more severe symptoms. The disease is more common in children and people with weakened immune systems. Diagnosis typically involves a physical examination and may include blood tests. Treatment usually focuses on managing symptoms, but antibiotics may be prescribed in more severe cases. Preventive measures include proper hygiene after handling cats.