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Median restriction time (in weeks) for salmonella infected farms, in the Salmonella Cubana outbreak, grouped by the veterinarians' opinion of the cleaning and disinfection (C & D).
| The veterinarians' opinion on the C & D | No. of herds | Median restriction time | |
| Feed system: | Uncomplicated C & D | 28 | 14 |
| Complicated C & D | 17 | 24 | |
| Stable: | Uncomplicated C & D | 37 | 16 |
| Complicated C & D | 6 | 27 |
