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Number of farms by prevalence of E. coli strains with blaCMY-2 and blaCTX-M genes
| Prevalence rangea | No. (%) of farms in prevalence category for E. coli with: |
|
|---|---|---|
| blaCMY-2 | blaCTX-M | |
| 0–0.2 | 0 (0) | 6 (20.0) |
| 0.2–0.4 | 0 (0) | 1 (3.3) |
| 0.4–0.6 | 4 (13.3) | 5 (16.7) |
| 0.6–0.8 | 5 (16.7) | 8 (26.7) |
| 0.8–1.0 | 21 (70.0) | 10 (33.3) |
Proportion of samples plated on selective media that yielded at least one E. coli isolate positive for blaCMY-2 or blaCTX-M.
