Table 4.
Numbers and percentages of MRSA positive sows and environmental wipes
| |
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 |
NL = Dutch; DK = Danish.
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.