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Table 2 Bacterial quantifications (CFU/ml of swab suspension) obtained from the different surfaces and rooms sampled

From: Controlling bacteriological contamination of environmental surfaces at the biological isolation and containment unit of a veterinary teaching hospital

Rooms

Surfaces

Mean

SD

Median

Min.

Max.

p-value

CFU/mL of swab suspension

ISOLATION ROOMS

 C1a

 

9.51 × 102

8.16

2.25 × 102

0

8.15 × 103

0.073

 C2a

 

4.56 × 102

13.61

1.50 × 102

0

3.00 × 103

 D1b

 

2.60 × 103

14.03

4.25 × 102

0

5.75 × 104

 D2b

 

2.46 × 103

22.14

1.00 × 103

0

7.53 × 104

 

Examination tables

2.90 × 102

33.04

3.04 × 102

0

5.76 × 103

0.019+

 

Cabinets

4.42 × 102

6.09

1.75 × 102

0

1.55 × 103

 

Cabinets handles 2c

4.73 × 102

9.83

1.75 × 102

0

3.25 × 103

 

Cabinets handles 3d

5.29 × 102

17,73

2.00 × 102

0

3.25 × 103

 

Doorknobs

9.85 × 102

16.68

7.33 × 102

0

1.55 × 103

 

Faucets

1.25 × 103

3.81

4.00 × 102

5.00 × 101

8.15 × 103

 

Cages

4.74 × 103

16.73

1.10 × 103

0

7.53 × 104

STAFF AREA

 Work room

3.96 × 103

2.18

2.93 × 103

1.00 × 102

1.11 × 104

 
 

Mouse

2,14 × 103

3.15

1,33 × 103

1.00 × 102

7.00 × 103

0.048+

 

Keyboard

3.41 × 103

1.19

2,60 × 103

1.05 × 103

6.95 × 103

 

Telephone

6.33 × 103

0.87

5,88 × 103

2.00 × 103

1.11 × 104

 Preparatory room

6.98 × 105

1.44 × 102

3.60 × 104

5.00 × 101

1.00 × 109

 
 

Food/Water bowls

9.86 × 103

13.48

1.50 × 103

5.00 × 101

3.25 × 104

< 0.01+

 

Countertop

1.18 × 105

7.37

3.19 × 104

1.50 × 103

5.55 × 105

 

Hand-held sponge

2.09 × 107

5.42

2.84 × 107

9.45 × 106

1.00 × 109

  1. a Cat isolation room
  2. b Dog isolation room
  3. c Pool of the last 2 cabinet handles
  4. d Pool of the first 3 cabinet handles
  5. + Statistically significant differences detected between groups