The flu (influenza) is a viral respiratory illness that causes fever, chills, runny nose, body aches, and cough. It spreads easily from person to person. The flu can cause moderate to severe symptoms.| medlineplus.gov
Hip fracture surgery is done to repair a break in the upper part of the thigh bone. The thigh bone is called the femur. It is part of the hip joint.| medlineplus.gov