is an infection that is acquired in a hospital or other health facility
acquired during receiving health care that was not present during time of admission
They may occur in different areas of healthcare delivery, such as in hospitals, long-term care facilities, and ambulatory settings, and may also appear after discharge.
HAIs also include occupational infections that may affect staff
Infection occurs when pathogen(s) spread to a susceptible patient host. The etiology based on the source or type of infection and the responsible pathogen, which may be bacterial, viral, or fungal. HAI is the most common adverse event in health care that affects patient safety. They contribute to significant morbidity, mortality, and financial burden on patients, families, and healthcare systems
