Table 1.
Prevalence of Campylobacter and fluoroquinolone-resistant Campylobacter among producers in 2004 and 2006.
| 2004
|
2006
|
|||||
|---|---|---|---|---|---|---|
| Producer | No. of samples | Percent (no.) Campylobactera | Percent (no.) FQ-resistant Campylobacterb | No. of samples | Percent (no.) Campylobactera | Percent (no.) FQ-resistant Campylobacterb |
| Antibiotic-free | ||||||
| A | 40 | 67.5 (27) | 3.7 (1) | 45 | 66.7 (30) | 0.0 (0) |
| B | 38 | 63.2 (24) | 4.2 (1) | 33 | 90.9 (30)c | 0.0 (0) |
| C | 40 | 92.5 (37) | 2.7 (1) | 42 | 95.2 (40) | 15.0 (6) |
| Conventional | ||||||
| D | 40 | 62.5 (25) | 24.0 (6) | 45 | 77.8 (35) | 37.1 (13) |
| E | 40 | 97.5 (39) | 28.2 (11) | 45 | 93.3 (42) | 42.9 (18) |
| Total | 198 | 76.8 (152) | 13.2 (20) | 210 | 84.3 (177) | 20.9 (37) |
FQ, fluoroquinolone.
a
Percentage of samples contaminated with Campylobacter (susceptible or resistant).
b
Percentage of Campylobacter isolates resistant to fluoroquinolone.
c
Significant increase over the 2004 proportion (p < 0.05).