Details

Autor(en) / Beteiligte

• Gorwitz, Rachel J.
• Kruszon-Moran, Deanna
• McAllister, Sigrid K.
• McQuillan, Geraldine
• McDougal, Linda K.
• Fosheim, Gregory E.
• Jensen, Bette J.
• Killgore, George
• Tenover, Fred C.
• Kuehnert, Matthew J.

Titel

Changes in the Prevalence of Nasal Colonization with Staphylococcus aureus in the United States, 2001–2004

Ist Teil von

• The Journal of infectious diseases, 2008-05, Vol.197 (9), p.1226-1234

Ort / Verlag

United States: The University of Chicago Press

Erscheinungsjahr

2008

Link zum Volltext

Quelle

Oxford Journals 2020 Medicine

Beschreibungen/Notizen

• BackgroundStaphylococcus aureus is a common cause of infection, particularly in persons colonized by this organism. Virulent strains of methicillin-resistant S. aureus (MRSA) have emerged in the general community MethodsA nationally representative survey of nasal colonization with S. aureus was conducted from 2001 through 2004 as part of the National Health and Nutrition Examination Survey. MRSA isolates were identified by the oxacillin disk-diffusion method. The pulsed-field gel electrophoresis (PFGE) type was determined for all MRSA isolates. A t statistic was used to compare the prevalence of colonization across biennia and across population subgroups. Cofactors independently associated with colonization were determined with backward stepwise logistic modeling ResultsThe prevalence of colonization with S. aureus decreased from 32.4% in 2001–2002 to 28.6% in 2003–2004 (P<.01), whereas the prevalence of colonization with MRSA increased from 0.8% to 1.5% (P<.05). Colonization with MRSA was independently associated with healthcare exposure in males and with having been born in the United States, age ⩾60 years, diabetes, and poverty in females. In 2003–2004, a total of 19.7% (95% confidence interval, 12.4%–28.8%) of MRSA-colonized persons carried a PFGE type associated with community transmission ConclusionsNasal colonization with MRSA has increased in the United States, despite an overall decrease in nasal colonization with S. aureus PFGE types associated with community transmission only partially account for the increase in MRSA colonization