TABLE 3.
Antimicrobial resistance patterns of Campylobacter isolates from organic and free-range birds
| Campylobacter MRP | Species | MICs (mg/liter) of antimicrobials (breakpoints)a
|
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pen (NA) | Kan (>16) | Gen (>16) | Nal (>32) | Spi (>10) | Neo (>25) | Amp (>32) | Tet (>16) | Cip (>4) | Ery (>8) | Str (>16) | Chl (>32) | ||
| OR1 | C. jejuni | 5 | >100 | 5 | 10 | 2 | >100 | 5 | >80 | 2 | 2 | >100 | 10 |
| OR2-3, OR6, OR11, OR13-14 | C. coli | 30 | 10 | 5 | 10 | 2 | 5 | 5-10 | 5 | 2 | 2-5 | 10 | 10 |
| OR4, OR5, OR12 | C. coli | 50 | 10 | 5 | 10 | 2 | 5 | 35 | 5 | 2 | 2 | 30 | 10 |
| OR7, OR9, OR10, OR16 | C. coli | 50 | 10 | 5 | 10 | 2 | 5 | 50 | 5 | 2 | 2-5 | 10 | 10 |
| OR8 | C. coli | 30 | 20 | 5 | 10 | 2 | 5 | 5-10 | 5 | 2 | 2 | 10 | 10 |
| OR15 | C. coli | 30 | 5 | 5 | 10 | 2 | 5 | 20 | 5 | 2 | 2 | 10 | 10 |
| F1 | C. jejuni | 30 | 10 | 5 | 10 | 2 | 5 | 5-10 | 5 | 2 | 2 | 20 | 10 |
| F2 | C. jejuni | 50 | 10 | 5 | 10 | 2 | 5 | 50 | 5 | 2 | 2 | 10 | 10 |
| F3, F8 | C. jejuni | 100 | 10 | 5 | 10 | 2 | 5 | >100 | 5 | 2 | 2 | 10 | 10 |
| F4 | C. jejuni | 100 | 20 | 5 | 2 | 2 | 5 | >100 | >80 | 2 | 2 | 10 | 10 |
| F5 | C. coli | >100 | 10 | 5 | >120 | 10 | 5 | >100 | >80 | >10 | 2 | 50 | 10 |
| F6 | C. coli | 30 | 10 | 5 | 10 | 2 | 5 | 10 | 50 | 2 | 2 | 10 | 10 |
| F7 | C. jejuni | 50 | 20 | 5 | 2 | 2 | 5 | >100 | 5 | 2 | 2 | 10 | 10 |
| F9 | C. coli | >100 | 10 | 5 | 10 | 2 | 5 | >100 | >80 | >10 | 2 | 10 | 10 |
| F10 | C. jejuni | >100 | 10 | 5 | 5 | 2 | 5 | >100 | 5 | 2 | 2 | 10 | 10 |
a
Pen, penicillin; Kan, kanamycin; Gen, gentamicin; Nal, nalidixic acid; Spi, spiramycin; Neo, neomycin; Amp, ampicillin; Tet, tetracyclin; Cip, ciprofloxacin; Ery, erythromycin; Str, streptomycin, Chl, chloramphenicol. Resistance-classified breakpoint concentrations are given in parentheses. NA, not available.