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Table 4 Distribution of selected variables among broiler houses in Iceland

From: House-level risk factors associated with the colonization of broiler flocks with Campylobacterspp. in Iceland, 2001 – 2004

Variable

Description of variable or level

Number of houses

Ventilation type (n = 75)

Both

25

 

Horizontal

6

 

Vertical

42

 

Variable changed during the study period (from horizontal to vertical)

2

Boots cleaned and disinfected before entry to house (n = 80)

Always

54

 

Sometime (according to need)

0

 

Never

21

 

Variable changed during the study period (from never to always)

2

 

Variable changed during the study period (from sometime to never)

3

Use of geothermal water for cleaning (n = 80)

Yes

59

 

No

21