Table 3. Antimicrobial drug resistance in Salmonella isolates from humans, retail meat, and food animals in Mexico, 2002–2005*.
| Source | % Resistant† |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| AMP | CHL | CIP | CRO | GEN | KAN | NAL | STR | SU | SXT | TET | |
| Ill humans (n = 392) | 25.5 | 23.4 | 0.0 | 14.5 | 11.7 | 11.2 | 24.6 | 61.1 | 49.7 | 24.3 | 41.2 |
| Asymptomatic children (n = 373) | 7.8 | 8.4 | 0.0 | 1.4 | 2.2 | 0.5 | 8.6 | 45.9 | 35.4 | 8.0 | 26.1 |
| Chicken‡ (n = 546) | 7.7 | 7.4 | 0.0 | 3.6 | 2.6 | 1.8 | 30.6 | 58.9 | 38.9 | 11.5 | 36.8 |
| Swine‡ (n = 1,237) | 18.3 | 22.9 | 0.6 | 4.2 | 8.4 | 9.0 | 26.0 | 73.1 | 62.1 | 24.2 | 55.3 |
| Cattle‡ (n = 767) | 11.9 | 14.1 | 0.0 | 1.2 | 6.6 | 7.2 | 20.8 | 71.6 | 53.1 | 19.2 | 48.8 |
*AMP, ampicillin; CHL, chloramphenicol; CIP, ciprofloxacin; CRO, ceftriaxone; GEN, gentamicin; KAN, kanamycin; NAL, nalidixic acid; STR, streptomycin; SU, sulfisoxazole; SXT, trimethoprim-sulfamethoxazole; TET, tetracycline. †Includes resistant and intermediate. ‡Includes isolates from food-animal intestines and the corresponding retail meat.