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Table 1 Percentage of microbial colonization obtained in the different equipment during the two years sampling

From: Persistence of microbial communities including Pseudomonas aeruginosa in a hospital environment: a potential health hazard

Colony Count

Feb 2010

Apr 2010

Jun 2010

Oct 2010

Dec 2010

Feb 2011

Mar 2011

Jun 2011

Sep 2011

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Low

High

Sink (porcelain)

15.4

47.6

15.8

46.2

27.3

34.3

-

34.2

23.1

30.0

25.0

54.2

12.5

58.8

12.5

62.2

28.6

52.9

Tap

7.7

4.8

-

23.1

36.4

34.3

25.0

31.6

38.5

45.0

31.3

37.5

50.0

26.5

5-

29.7

42.9

29.4

Countertop (sinks)

-

-

15.8

15.4

-

-

-

2.6

-

-

-

-

12.5

2.9

-

-

-

-

Workbench

15.4

4.8

15.8

7.7

-

-

-

10.5

7.7

-

-

4.2

12.5

-

12.5

-

7.1

-

Shower (+handrail)

7.7

14.3

-

-

-

8.6

-

13.2

-

5.0

6.3

4.2

-

5.9

-

5.4

-

2.9

Bedside table

15.4

4.8

10.5

7.7

27.3

5.7

12.5

2.6

7.7

-

12.5

-

-

2.9

-

-

14.3

-

Handrail bed (+bed)

-

4.8

5.3

-

-

-

-

2.6

-

-

-

-

-

-

-

-

-

-

Serum support

-

-

10.5

-

-

-

-

-

-

-

-

-

-

-

-

-

-

2.9

Oxygen flask

-

4.8

-

-

-

-

-

-

7.7

-

-

-

-

-

-

-

-

-

Stethoscope

7.7

-

-

-

-

-

12.5

-

-

-

-

-

-

-

-

-

-

-

Equip bedside

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

Medical equipments

7.7

9.5

15.8

-

-

-

12.5

-

7.7

-

-

-

-

-

-

-

-

2.9

Tray

23.1

4.8

5.3

-

9.1

5.7

12.5

-

7.7

5.0

12.5

-

-

-

-

2.7

-

5.9

Hand gel/soap

-

-

-

-

-

11.4

25.0

2.6

-

15.0

12.5

-

-

-

25.0

-

7.1

-

Table (meal/work)

-

-

5.3

-

-

-

-

-

-

-

-

-

12.5

2.9

-

-

-

2.9

  1. Results show only high and low levels of contamination per sampling.