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Herold BC, Immergluck LC, Maranan MC, et al. Community-Acquired Methicillin-Resistant Staphylococcus aureus in Children With No Identified Predisposing Risk. JAMA. 1998;279(8):593–598. doi:https://doi.org/10.1001/jama.279.8.593
From the Department of Pediatrics (Drs Herold, Immergluck, Maranan, Boyle-Vavra, and Daum), Department of Health Studies (Dr Lauderdale), and the Clinical Microbiology Laboratories (Ms Leitch), The University of Chicago Hospitals, Chicago, Ill, and the Research Service, Veterans Affairs Medical Center, Boston, Mass (Mr Gaskin). Dr Immergluck is now with the Department of Pediatrics, University of Illinois at Chicago.
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.
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