Community-acquired methicillin-resistant Staphylococcus aureus in children with no identified predisposing risk.
CONTEXT: Community-acquired methicillin-resistant Staphylococcus aureus (MRSA) infections in children have occurred primarily in individuals with recognized predisposing risks. Community-acquired MRSA infections in the absence of identified risk factors have been reported infrequently. OBJECTIVES: To determine whether community-acquired MRSA infections in children with no identified predisposing risks are increasing and to define the spectrum of disease associated with MRSA isolation. DESIGN: Retrospective review of medical records. PATIENTS: Hospitalized children with S aureus isolated between August 1988 and July 1990 (1988-1990) and between August 1993 and July 1995 (1993-1995). SETTING: The University of Chicago Children's Hospital. MAIN OUTCOME MEASURES: Prevalence of community-acquired MRSA over time, infecting vs colonizing isolates, and risk factors for disease. RESULTS: The number of children hospitalized with community-acquired MRSA disease increased from 8 in 1988-1990 to 35 in 1993-1995. Moreover, the prevalence of community-acquired MRSA without identified risk increased from 10 per 100000 admissions in 1988-1990 to 259 per 100000 admissions in 1993-1995 (P<.001), and a greater proportion of isolates produced clinical infection. The clinical syndromes associated with MRSA in children without identified risk were similar to those associated with community-acquired methicillin-susceptible S aureus. Notably, 7 (70%) of 10 community-acquired MRSA isolates obtained from children with an identified risk were nonsusceptible to at least 2 drugs, compared with only 6 (24%) of 25 isolates obtained from children without an identified risk (P=.02). CONCLUSIONS: These findings demonstrate that the prevalence of community-acquired MRSA among children without identified risk factors is increasing.[1]References
- Community-acquired methicillin-resistant Staphylococcus aureus in children with no identified predisposing risk. Herold, B.C., Immergluck, L.C., Maranan, M.C., Lauderdale, D.S., Gaskin, R.E., Boyle-Vavra, S., Leitch, C.D., Daum, R.S. JAMA (1998) [Pubmed]
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