Table 5.
Numbers and percentages of MRSA positive pigs and environmental wipes
| |
Moment 2 |
Moment 3 |
Moment 4 |
Moment 5 |
Moment 6 |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |
Pigs |
Pigs |
Wipes |
Pigs |
Wipes |
Pigs |
Wipes |
Pigs |
|||||
| Herd | N | % Pos | N | % Pos | N pos/N total | N | % Pos | N pos/n total | N | % Pos | N pos/n total | N | % Pos |
| NL1 |
199 |
42.7 |
186 |
93.0 |
4/4 |
125 |
100.0 |
- |
- |
- |
- |
- |
- |
| NL2 |
147 |
100.0 |
146 |
99.3 |
0/4 |
93 |
55.9 |
2/4 |
92 |
100.0 |
4/4 |
80 |
86.3 |
| NL3 |
90 |
95.6 |
90 |
98.9 |
4/4 |
87 |
100.0 |
4/4 |
86 |
100.0 |
4/4 |
82 |
63.4 |
| NL4a |
68 |
4.4 |
64 |
3.1 |
0/4 |
65 |
52.3 |
1/4 |
64 |
89.1 |
3/4 |
62 |
64.5 |
| NL4b |
79 |
1.3 |
70 |
0.0 |
1/4 |
67 |
20.9 |
0/4 |
68 |
16.2 |
0/4 |
68 |
13.2 |
| NL |
583 |
55.2 |
556 |
73.6 |
9/20 |
437 |
71.4 |
7/16 |
310 |
79.4 |
11/16 |
292 |
58.2 |
| DK1 |
57 |
100.0 |
48 |
100.0 |
10/10 |
48 |
100.0 |
7/10 |
45 |
100.0 |
5/5 |
46 |
100.0 |
| DK2 |
142 |
68.3 |
133 |
87.2 |
10/10 |
129 |
100.0 |
15/15 |
123 |
100.0 |
10/10 |
67 |
98.5 |
| DK |
199 |
77.4 |
181 |
90.6 |
20/20 |
177 |
100.0 |
22/25 |
168 |
100.0 |
15/15 |
113 |
99.1 |
| NL + DK | 782 | 60.9 | 737 | 77.8 | 29/40 | 614 | 79.6 | 29/41 | 478 | 86.6 | 26/31 | 405 | 69.6 |
NL = Dutch; DK = Danish.
Pigs were classified MRSA positive if either one of the swabs (nasal/rectal) tested positive; from all MRSA positive samplings of pigs (n = 476), 67% was classified positive based on both swabs, 31% on a positive nasal swab and 2% on a positive rectal swab.