[Survey or nosocomial infection chiefly due to MRSA in the Sapporo Medical University Hospital].

Nosocomial infection followed by MRSA (Methicillin Resistant Staphylococcus aureus) is an important and serious problem in most of the Japanese hospitals. Around 70% of S. aureus isolated from patient's samples in Sapporo Medical University Hospital are MRSA. As one of measures to reduce the nosocomial infection, we consider that it is a first choice to survey the environmental conditions which seemingly cause nosocomial infection. In the present paper, we report the results in respect of MRSA contamination in our hospital in general, and results of coagulase types of MRSA found in patient's samples and that obtained from nasal cavity, finger tips of medical staffs (Doctors and Nurses) and swabbed materials in the ward floor, patient's lavatory etc.