Analysis of MRSA clones with POT derived from outpatients in our hospital

Abstract

To identify community MRSA clones, we carried out POT and detected four exfoliative toxin genes (PVL,TSST-1,ETA,ETB) of 69 MRSA strains that have been detected from outpatients. We detected the POT types 106-137-80 and 106-9-80 most often from outpatients. The POT type 106-137-80 was also detected most often from inpatients during the same period. In 2010, we detected “106” in 11.4% of the patients, which increased to 27.4% in 2014. Moreover, we found 19 TSST-1-producing MRSA strains and an ETA-producing MRSA strain, but we found no PVL- and ETB-producing MRSA strains. In this study, we examined CA-MRSA clones and their exfoliative toxin genes. The community-epidemic-causing strain brought to a hospital is of paramount importance, and in the future, it will be necessary to determine the trend of infection to improve the control of hospital infection.