Journal Article

Community-Acquired Methicillin-Resistant <i>Staphylococcus aureus</i> in Hospitalized Adults and Children without Known Risk Factors

Edward J. Gorak, Stephen M. Yamada and Joel D. Brown

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 29, issue 4, pages 797-800
Published in print August 1999 | ISSN: 1058-4838
Published online August 1999 | e-ISSN: 1537-6591 | DOI: http://dx.doi.org/10.1086/520437
Community-Acquired Methicillin-Resistant Staphylococcus aureus in Hospitalized Adults and Children without Known Risk Factors

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Community-acquired methicillin-resistant Staphylococcus aureus (MRSA) infections are not commonly recognized in healthy patients without predisposing risk. We performed a retrospective study of patients hospitalized with community-acquired MRSA infections from 1992 to 1996 in Honolulu to determine if community-acquired MRSA infections occurred in patients without known risk. Patients hospitalized within the previous 6 months or transferred from other hospitals or nursing homes were excluded. Epidemiological and clinical data were obtained from an inpatient chart review. Ten (71%) of 14 patients with community-acquired MRSA infection had no discernible characteristics of MRSA infections. Thirteen (93%) patients had skin or soft-tissue infections and one patient had MRSA pneumonia. Isolates from patients with MRSA infection were more likely to be susceptible to ciprofloxacin (P = .05), clindamycin (P = .03), and erythromycin (P = .01) than were those from MRSA-colonized patients. In our population, the majority of community-acquired MRSA infections occurred in previously healthy individuals without characteristics suggestive of MRSA transmission.

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Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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