TABLE 1.
Distribution of prevalent PFGE types on English cattle farms
| Farm no. | Prevalent type (% of isolates on the farm)a | No. of animals (total animals on the farm)b |
|---|---|---|
| 2 | X44 (40.4) | 13 (23) |
| 3 | X24 (48.6) | 11 (19) |
| 4 | X49 (30.7) | 5 (14) |
| 5 | X31 (37.5) | 2 (5) |
| X56 (37.5) | 2 (5) | |
| 6 | X22 (44.5) | 4 (9) |
| 8 | X8 (51.7) | 7 (12) |
| 9 | X24 (48.2) | 16 (29) |
| 11 | X6 (43) | 3 (4) |
a
Numbers in parentheses indicate the percentage of isolates on the farm belonging to the prevalent PFGE type.
b
This figure indicates the number of animals from which at least one isolate belonging to the PFGE prevalent type was cultured. The number in parentheses indicates the total number of animals positive for E. coli O157 on the particular farm.