Most common organism involved in nosocomial infection -

UTI is the most common type of nosocomial infection. . Most common cause of UTI ---> E coli . Most common cause of UTI in ICU ----> Candida . Overall staph aureus is a leading cause of nosocomial infection. . Staph aureus is the most common cause of surgical wound infection - . Most common cause of primary bacteremia --> Coagulase negative staphylococcus. REF : ananthanarayana 10th ed