Table 1.
Overview of dust sampling and detection of MRSA and Staphylococcus aureus types in the sampled dust.
| Pig farm | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| Stable sections | Weaning and nursing | Weaning | 4 Weaning sections | Farrowing and weaning | Slaughter and weaning | Farrowing and 2 weaning sections |
| Number of samplesa | 24 (n = 3) | 48 (n = 1–3) | 16 (n = 1) | 24 (n = 3) | 24 (n = 3) | 60 (n = 5) |
| Survival period studied (days postsampling) | 0, 10, 15, 20 | 0–7 (4 days analyzed)b | 1, 9, 17, 30 | 6, 12, 18, 24 | 5, 10, 14, 17 | 0, 1, 4 |
| S. aureus detected | Yes | Yes | Yes | Yes | Yes | Yes |
| MRSA detected | Yes | Yes | Yes | Yes | Yes | No |
| CC group | CC398 and CC30 | CC398 | CC398 | CC398 | CC398 | CC398 |
| Spa-type | t034, t4652, and t1333 | t011 | t034 | t571 | t034 | t034 |
a
Total number of samples (n = number of replicate samples from the same sampling occasion and section).
b
Sampling was performed at 8 different occasions, and survival was analyzed at Day 0 and after storage for three different time periods until Day 7.