Isolation and antimicrobial susceptibility of methicillin-resistant staphylococci (MRS) in Osaka Detal University Hospitl MRS colonization in the nasal cavities of medical stuff (part 2)

Abstract

We investigated the spread of methicillin-resistant staphylococci (MRS) in Osaka Dental University Hospital. We examined the nasal carriages of the medical staff in 1994, and tested the antimicrobial susceptibility of the isolates. MRS were isolated from 70 of 93 medical staff on the first examination and 35 of 43 medical staff on the second. No MRS strains tested had mannitol fermentation or coagulase production. MRS strains were classified into various types according to antibiotic sensitivity. All MRS tested were susceptible to vancomycin. These results indicate that methicillin-resistant, coagulase-negative staphylococci of various types were prevalent in the nasal cavities of medical staff in Osaka Dental University Hospital.