A Hospital Acquired Infection (HAI) is an infection that patients can get while receiving treatment for other conditions in a healthcare facility. These infections can occur in various parts of the body, including the bloodstream, lungs, and surgical sites. They are often caused by bacteria, viruses, or fungi that are present in the hospital environment. HAIs can result from several factors, such as invasive procedures, the use of medical devices, or prolonged hospital stays. Preventing these infections is crucial and involves practices like proper hand hygiene, sterilization of equipment, and careful monitoring of patients to reduce the risk of transmission.