TABLE 2 .
Percentages of E. coli isolates resistant to a panel of 12 antibiotics classified by sample typea
| Sample type | % of E. coli isolates resistant to: |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AMC | AM | CTX | CF | C | CIP | ENO | GM | S | G | TE | TMP | |
| Poultry | 9.01 | 26.24 | 13.44 | 10.61 | 15.68 | 16.11 | 15.89 | 7.25 | 19.79 | 40.27 | 52.64 | 36.32 |
| Production (n = 786) | 18.32 | 44.91 | 24.55 | 22.52 | 28.37 | 29.64 | 29.52 | 15.78 | 36.39 | 69.08 | 78.12 | 63.23 |
| Household (n = 1,089) | 2.30 | 12.76 | 5.42 | 2.02 | 6.52 | 6.34 | 6.06 | 1.10 | 7.81 | 19.47 | 34.25 | 16.90 |
| Environment | 6.44 | 18.97 | 6.03 | 5.41 | 7.05 | 4.52 | 4.59 | 3.01 | 6.71 | 23.29 | 31.30 | 20.89 |
| Household water (n = 326) | 12.27 | 26.38 | 4.60 | 10.12 | 6.13 | 4.29 | 4.60 | 2.15 | 4.60 | 26.07 | 29.14 | 23.01 |
| Household soil (n = 863) | 4.17 | 15.30 | 5.45 | 2.32 | 6.14 | 3.36 | 3.36 | 2.67 | 4.98 | 18.19 | 27.46 | 15.87 |
| Coop soil (n = 96) | 4.17 | 17.71 | 8.33 | 8.33 | 9.38 | 7.29 | 7.29 | 5.21 | 12.50 | 35.42 | 53.13 | 35.42 |
| Household surfaces (n = 98) | 2.04 | 20.41 | 3.06 | 2.04 | 6.12 | 1.02 | 1.02 | 0.00 | 9.18 | 24.49 | 28.57 | 19.39 |
| Coop surfaces (n = 77) | 15.58 | 28.57 | 19.48 | 20.78 | 19.48 | 19.48 | 19.48 | 11.69 | 24.68 | 51.95 | 59.74 | 51.95 |
a
Numbers show percentages of isolates classified as resistant based on their zone of inhibition. Categorical interpretation is based on breakpoints derived as described in Materials and Methods. The number of isolates tested for each sample type is shown in Table 1. AMC, amoxicillin/clavulanate, AM, ampicillin; CTX, cefotaxime; CF, cephalothin; C, chloramphenicol; CIP, ciprofloxacin; ENO, enrofloxacin; GM, gentamicin; S, streptomycin; G, sulfisoxazole; TE, tetracycline; TMP, trimethoprim.