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Table 4 Numbers and percentages of MRSA positive sows and environmental wipes

From: Longitudinal study on transmission of MRSA CC398 within pig herds

 

Moment 1

Moment 2

Moment 3

 

Wipes

Sows

Wipes

Sows

Wipes

Sows

Herd

N pos/n total

N

% Pos

N pos/n total

N

% Pos

N pos/n total

N

% Pos

NL1

1/4

16

6.3

3/4

16

25.0

4/4

16

93.8

NL2

4/4

12

33.3

4/4

12

100.0

4/4

12

100.0

NL3

3/4

8

50.0

4/4

8

62.5

4/4

8

100.0

NL4a

1/4

6

0.0

0/4

6

0.0

0/4

4

0.0

NL4b

0/4

6

0.0

0/4

6

0.0

0/4

6

0.0

NL

9/20

48

18.8

11/20

48

43.8

12/20

46

76.1

DK1

5/5

5

100.0

5/5

6

100.0

10/10

6

100.0

DK2

5/5

10

70.0

4/5

14

92.9

5/5

14

71.4

DK

10/10

15

80.0

9/10

20

95.0

15/15

20

80.0

NL + DK

19/30

63

33.3

20/30

68

58.8

27/35

66

77.3

  1. NL = Dutch; DK = Danish.
  2. Sows were classified MRSA positive if either one of the swabs (nasal/vaginal) tested positive; from all MRSA positive samplings of sows (n = 112), 58% was classified positive based on both swabs, 39% on a positive nasal swab and 3% on a positive vaginal swab.