TABLE 1.

Comparison of the two study periods

Study periodDuration (mo)No. of MRSA isolatesNo. of patientsNo. of staff membersNo. of spa typesNo. of unique spa typesPredomi- nant spa typesNo. of departments involvedNo. of wards involvedNo. of outpatient clinicsNo. of clustersaNo. of wards involved in clustersNo. of patients involved in clustersspa types involved in clusters
11010710611771, 313297117331, 3, 5, 8, 10, 13
24848221493, 231429686191, 3, 23
  • a A cluster was defined as the identification, within 9 days, of two or more patients on the same ward who harbored MRSA strains with the same spa type.