OBJECTIVE To investigate the current condition and distribution of nosocomial infections in mental hospital,so as to provide scientific basis for preventing and controlling the nosocomial infections.METHODS A retrospective investigation was conducted on the cases of nosocomial infections in 7671patients who discharged from the hospital during the first half of 2011and 2012.RESULTS 104cases of nosocomial infections were found in the first half of 2011and the infection rate was 2.86%,the missing report rate w...