Table 4. Antimicrobial drug resistance in Salmonella enterica serovar Typhimurium 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 = 87) | 79.3 | 80.5 | 0.0 | 66.3 | 44.8 | 33.3 | 55.1 | 97.3 | 91.9 | 71.2 | 88.5 |
| Asymptomatic children (n = 25) | 36.0 | 36.0 | 0.0 | 25.0 | 4.0 | 4.0 | 12.0 | 73.9 | 60.0 | 24.0 | 44.0 |
| Chicken‡ (n = 22) | 100.0 | 86.4 | 0.0 | 77.3 | 18.2 | 18.1 | 27.2 | 100.0 | 90.9 | 54.5 | 90.9 |
| Swine‡ (n = 127) | 61.9 | 88.9 | 1.7 | 40.4 | 47.6 | 41.3 | 72.2 | 97.2 | 92.9 | 63.5 | 94.4 |
| Cattle‡ (n = 53) | 47.2 | 71.7 | 0.0 | 7.5 | 45.3 | 35.9 | 79.2 | 94.6 | 90.6 | 56.6 | 92.5 |
*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.