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  Hospital acquired infection Market Overview A hospital acquired infection (HAI) or nosocomial infection or health care associated infection (HAI or HCAI), is an infection that is acquired in a health care facility. The infection acquired in health care facility by a patient must be other than the one for which the patient was admitted and includes infections acquired in the hospital however effects and symptoms appear after discharge. The HAI also includes occupational infection among staff of the hospital. The infection can originate from outside environment, another infected patient, or from staff that may be infected; in some cases, the source of the infection cannot be determined. There are cases where microorganism originates from the patient's own skin micro biota, becoming opportunistic after surgery or other procedures that compromise the protective skin barrier. WHO estimates that 8.7% of hospital patients had nosocomial infections affecting over 1.4 million people wor...