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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.