TABLE 2.
Prevalence of Campylobacter isolated from fecal samples of feedlot cattle before and after starling intervention
| State | Preintervention |
Postintervention |
||||||
|---|---|---|---|---|---|---|---|---|
| No. of samples tested | No. Campylobacter positive (%) | No. of C. jejuni isolates (%)a | No. of clone SA isolates (%)b | No. of samples tested | No. Campylobacter positive (%) | No. of C. jejuni isolates (%)a | No. of clone SA isolates (%)b | |
| Iowa | 400 | 280 (70.0) | 245 (87.5) | 7 (2.9) | 400 | 273 (68.3) | 242 (88.6) | 9 (3.7) |
| Texas | 250 | 170 (68.0) | 144 (84.7) | 12 (8.3) | 326 | 244 (74.8) | 223 (91.4) | 30 (13.5) |
| Missouri | 150 | 85 (56.7) | 72 (84.7) | 5 (6.9) | 150 | 125 (83.3) | 119 (95.2) | 10 (8.4) |
| Colorado | 360 | 274 (76.1) | 202 (80.3) | 6 (3.0) | 398 | 319 (80.2) | 236 (74.0) | 8 (3.4) |
| Kansas | 350 | 235 (67.1) | 165 (63.8) | 6 (3.6) | 400 | 292 (73.0) | 238 (81.5) | 17 (7.1) |
| Total | 1,510 | 1,044 (69.1) | 828 (79.3) | 36 (4.3) | 1,674 | 1,253 (74.9) | 1,058 (84.4) | 74 (7.0) |
a
The percentage is the proportion of C. jejuni isolates among the Campylobacter isolates.
b
The percentage is the proportion of clone SA isolates among the C. jejuni isolates.