MRSA nasal colonization in children: Prevalence meta-analysis, review of risk factors and molecular genetics

Francesco Gesualdo, Dafne Bongiorno, Caterina Rizzo, Antonino Bella, Donato Menichella, Stefania Stefani, Alberto E. Tozzi

Research output: Contribution to journalArticlepeer-review


BACKGROUND: We report a meta-analysis of MRSA nasal colonization prevalence in children, and a review of the risk factors as well as molecular genetic characterization. METHODS: All relevant studies reporting prevalence data on MRSA nasal colonization in children published between January 2000 and August 2010 were retrieved from the MEDLINE database and analyzed. RESULTS: After screening 544 studies, 50 studies were included. We obtained an estimate of MRSA prevalence of 2.7% (CI 95%: 2.2-3.1); of 5.2% (CI 95%:3.1-7.3) in children with underlying conditions and of 2.3% (CI 95%: 1.8-2.7) in healthy children; 5.4% (CI 95%: 3.1-7.7) in children recruited in hospitals and 3% (CI 95%: 2.4-3.6) in children recruited in the community. SCCmecIV is the most diffused cassette globally. CONCLUSION: The hospital remains the environment where the microorganism circulates most. Children with underlying conditions could act as vectors of microorganisms between the hospital and the community. MRSA prevention strategies should be tailored to each specific institution, taking into account the nosocomial prevalence of MRSA nasal colonization and infections, and the prevalence of nasal colonization in the community that refers to the specific health care center.

Original languageEnglish
JournalPediatric Infectious Disease Journal
Publication statusAccepted/In press - Jan 21 2013

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases
  • Pediatrics, Perinatology, and Child Health


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