Anesthesiology has the potential for transmitting a number of pathogens to the patient because it requires invasive procedures that violate the body buriers as intravascular catheter, airway control, although this fact, there is a little date to support a cause and effect relationships. Because of most infections associated with anesthesia (both anesthesia- related and occupationally acquired) are preventable, anesthesia personal must know the epidemiology and pathogens of such infection in objective to implement preventive measures.