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Antimicrobial Agents and Chemotherapy, December 2004, p. 4926-4928, Vol. 48, No. 12
0066-4804/04/$08.00+0 DOI: 10.1128/AAC.48.12.4926-4928.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
Emergence in Asian Countries of Staphylococcus aureus with Reduced Susceptibility to Vancomycin
Jae-Hoon Song,1,2*
Keiichi Hiramatsu,3
Ji Yoeun Suh,2
Kwan Soo Ko,2
Teruyo Ito,3
Maria Kapi,3
Sungmin Kiem,1
Yeon-Sook Kim,4
Won Sup Oh,1
Kyong Ran Peck,1
Nam Yong Lee,5 and and the Asian Network for Surveillance of Resistant Pathogens (ANSORP) Study Group
Division of Infectious Diseases,1
Department of Laboratory Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine,5
Asian-Pacific Research Foundation for Infectious Diseases (ARFID), Seoul,2
Chungnam National University Hospital, Daejon, South Korea,4
Department of Bacteriology, Juntendo University, Tokyo, Japan3
Received 10 June 2004/
Returned for modification 12 August 2004/
Accepted 19 August 2004
To investigate the prevalence of Staphylococcus aureus with reduced susceptibility to vancomycin among methicillin-resistant S. aureus (MRSA) strains in Asian countries, a total of 1,357 clinical isolates of MRSA collected from 12 Asian countries were screened by using brain heart infusion agar plates containing 4 mg of vancomycin per liter. The presence of strains that were heterointermediately resistant to vancomycin (hVISA) was confirmed by population analysis. Of 347 (25.6%) MRSA isolates that grew on the screening agar plates, 58 isolates (4.3%) were hVISA. hVISA strains were found in India, South Korea, Japan, the Philippines, Singapore, Thailand, and Vietnam. However, neither vancomycin-intermediate S. aureus nor vancomycin-resistant S. aureus isolates were found among MRSA isolates from Asian countries in this survey.
* Corresponding author. Mailing address: Division of Infectious Diseases, Samsung Medical Center, Sungkyunkwan University, Asian-Pacific Research Foundation for Infectious Diseases (ARFID), 50 Il-won dong, Kangnam-ku, Seoul 135-710, South Korea. Phone: 82-2-3410-0320. Fax: 82-2-3410-0328. E-mail:
jhsong{at}smc.samsung.co.kr
Contributing members of the ANSORP Study Group are listed in Acknowledgments.
Antimicrobial Agents and Chemotherapy, December 2004, p. 4926-4928, Vol. 48, No. 12
0066-4804/04/$08.00+0 DOI: 10.1128/AAC.48.12.4926-4928.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
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