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Microbiol Immunol. 2007;51(6):627-32.

Spread of community-acquired methicillin-resistant Staphylococcus aureus (MRSA) in hospitals in Taipei, Taiwan in 2005, and comparison of its drug resistance with previous hospital-acquired MRSA.

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1
Division of Bacteriology, Department of Infectious Disease Control and International Medicine, Niigata University Graduate School of Medical and Dental Sciences, Japan, and National Taiwan University Hospital, Taipei, Taiwan.

Abstract

Panton-Valentine leucocidin (PVL)-positive methicillin-resistant Staphylococcus aureus (PVL+ MRSA) is an emerging pathogen in the community worldwide. The incidence of PVL+ MRSA in Taipei, Taiwan was 23.3% for hospital MRSA. PVL+ MRSA was isolated from both outpatients and inpatients. Some PVL+ (mecA+) strains (36.8%) showed low MIC values (<or=2 microg/ml) to oxacillin. A major PVL+ MRSA resistance pattern was oxacillin and clindamycin resistance (81%). There was no multidrug resistance over three drugs, in contrast to patient PVL- MRSA with resistance to five drugs as a major resistance pattern. The majority of PVL+ MRSA belonged to multilocus sequence (ST) type 59, while PVL+ MRSA belonged to ST239, ST59 and ST5. The data suggests that although PVL+ CA-MRSA is isolated at a high incidence from hospitals in Taipei, the drug resistance is mostly selected in the community and less prominent compared with previous PVL- hospital-acquired MRSA.

PMID:
17579274
[Indexed for MEDLINE]
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