Table 1.
Origins of the 56 MRSA isolates included in this study.
| Farm environment |
|||||
|---|---|---|---|---|---|
| Farm | Source of MRSA | Farm size | County | Fattening periodj | Number of isolates per farm |
| 1 | Flock environmenta | Not specified | 1 | Short | 1 |
| 2 | Flock environmenta | Not specified | 2 | Short | 1 |
| 3 | Flock environmenta | Not specified | 3 | Short | 1 |
| 4 | Flock environmenta | Not specified | 3 | Short | 1 |
| 5 | Flock environmenta | Not specified | 3 | Short | 1 |
| 6 | Flock environmenta | Not specified | 2 | Short | 1 |
| 7 | Flock environmenta | Not specified | 3 | Short | 1 |
| 8 | Flock environmenta | Not specified | 4 | Short | 1 |
| 9 | Flock environmentb,c, chicken | >20,000 | 4 | Short | 6 |
| 10 | Flock environmenta,b,c,d,e,f, chicken | >20,000 | 4 | Short | 22 |
| 11 | Flock environmentb,c,h, chicken | >20,000 | 4 | Mid | 4 |
| 12 | Flock environmenta,c,d,f,g, chicken | >20,000 | 4 | Splitting | 8 |
| 13 | Flock environmenta,b,d,f | <20,000 | 4 | Short | 4 |
| 14 | Chicken | >20,000 | 4 | Mid | 3 |
| 15 | Flock environmenti | >100,000 | 4 | Long | 1 |
a
Pooled sample from flock environment.
b
Drinking and/or feeding line.
c
Animal weight scale.
d
Gas heating.
e
Temperature sensor.
f
Air inlet flap.
g
Air outlet flap.
h
Barn wall.
i
Anteroom.
j
Fattening periods are defined as: short (28 to 30 D), mid (32 to 35 D), long (38 to 42 D), splitting (removal of some animals before the end of the fattening period.