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Table 3 Total positive plates & colony counts per site by bacterial heterotrophic colony counts and methicillin-resistant Staphylococcus aureus before and after manual and UV light disinfection for 5 high touch surfaces

From: Evaluation of a pulsed-xenon ultraviolet room disinfection device for impact on contamination levels of methicillin-resistant Staphylococcus aureus

  HPC positive plates (colony count) MRSA positive plates (colony count)
Site Manual PPX-UV Manual PPX-UV
  Before After Before After Before After Before After
Bed rail 10/10 (774) 10/10 (30) 10/10 (1079) 0/10 (0) 8/10 (308) 0/10 (0) 8/10 (188) 0/10 (0)
Call button 10/10 (494) 6/10 (64) 10/10 (1121) 3/10 (54) 9/10 (89) 1/9 (1) 8/10 (286) 1/10 (1)
Tray table 10/10 (311) 8/10 (21) 10/10 (293) 1/10 (4) 9/10 (48) 1/10 (1) 5/10 (10) 1/10 (1)
Bathroom handrail 10/10 (392) 10/10 (91) 10/10 (988) 5/10 (20) 8/10 (269) 3/10 (86) 9/10 (265) 2/10 (5)
Toilet seat 10/10 (579) 7/10 (398) 10/10 (1009) 2/10 (6) 9/10 (559) 3/10 (25) 8/10 (333) 0/10 (0)
Total 50/50 (2550) 41/50 (604) 50/50 (4490) 11/50 (84) 43/50 (1273) 8/49 (113) 38/50 (1082) 4/50 (7)
  1. HPC: Bacterial heterotrophic plate counts.
  2. MRSA: Methicillin-resistant Staphylococcus aureus.
  3. PPX-UV: Portable pulsed xenon Ultraviolet.