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Table 2 Mycobacterium avium subspecies paratuberculosis environmental sampling results for all pens during group housing

From: Fecal shedding and tissue infections demonstrate transmission of Mycobacterium avium subsp. paratuberculosis in group-housed dairy calves

Group housing (week)

Pen ID

Total

1

2

3

4

5

6

7

Controls

1

+

+

+

+

4

2

+

1

3

+

+

+

3

4

+

+

+

3

5

+

+

+

+

+

+

6

6

+

+

+

+

4

7

+

+

+

+

+

5

8

+

+

+

3

9

+

+

+

3

10

0

11

0

12

0

Total

5

5

6

3

2

4

7

0

32