Research Output
Dynamic Transmission of Staphylococcus Aureus in the Intensive Care Unit
  Staphylococcus aureus is an important bacterial pathogen. This study utilized known staphylococcal epidemiology to track S. aureus between patients, surfaces, staff hands and air in a ten-bed intensive care unit (ICU). Methods: Patients, air and surfaces were screened for total colony counts and S. aureus using dipslides, settle plates and an MAS-100 slit-sampler once a month for 10 months. Data were modelled against proposed standards for air and surfaces, and ICU-acquired staphylococcal infection. Whole-cell genomic typing (WGS) demonstrated possible transmission pathways between reservoirs. Results: Frequently touched sites were more likely to be contaminated (>12 cfu/cm2; p = 0.08). Overall, 235 of 500 (47%) sites failed the surface standard (≤2.5 cfu/cm2); 20 of 40 (50%) passive air samples failed the “Index of Microbial Air” standard (2 cfu/9 cm plate/h), and 15/40 (37.5%) air samples failed the air standard (

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    22 March 2020

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    New Funder


Adams, C. E., & Dancer, S. J. (2020). Dynamic Transmission of Staphylococcus Aureus in the Intensive Care Unit. International Journal of Environmental Research and Public Health, 17(6),



Staphylococcus aureus; critical care; transmission; hand-touch site; ventilation

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