Nationwide surveillance for Staphylococcus aureus with reduced susceptibility to vancomycin in Korea |
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Authors: | Kim Hong Bin Park Wan Beom Lee Ki Deok Choi Young Joo Park Sang Won Oh Myoung-Don Kim Eui-Chong Choe Kang Won |
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Institution: | Department of Internal Medicine, Seoul National University College of Medicine, Republic of Korea. |
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Abstract: | Methicillin-resistant Staphylococcus aureus (MRSA) accounts for more than 70% of S. aureus isolates from tertiary hospitals in Korea. Clinical isolates of S. aureus were collected from eight provincial, university-affiliated hospitals during the period from June 1999 to January 2001 for nationwide surveillance. All isolates were screened for reduced susceptibility to vancomycin by using brain heart infusion agar containing 4 micro g of vancomycin per milliliter. Population analysis and the determination of the MIC of vancomycin were done for the isolates which grew on the screening agar plates. Of 682 total isolates, MRSA accounted for 64% (439 of 682). Of 27 (4%) isolates that grew on the screening agar plates, none showed the heteroresistance phenotype. No strains with reduced susceptibility to vancomycin were identified. |
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