Antimicrobial | Percentage of resistant isolates (number of isolates) | ||||
---|---|---|---|---|---|
 | Phitsanulok 2001 (n= 54) | Bangkok 2001-2002 (n= 46) | Sakaew 2002 (n= 15) | Pranburi 2003 (n= 23) | p-value * |
Nalidixic acid | 96.2% (52) | 93.5% (43) | 86.6% (13) | 100.0% (23) | NS |
Ciprofloxacin | 96.2% (52) | 87.0% (40) | 86.6% (13) | 91.3% (21) | NS |
Erythromycin | 0.0% (0) | 6.5% (3) | 0.0% (0) | 0.0% (0) | NS |
Azithromycin | 0.0% (0) | 6.5% (3) | 0.0% (0) | 0.0% (0) | NS |
Tetracycline | 90.7% (49) | 76.0% (35) | 86.6% (13) | 69.5% (16) | NS |
Trimethoprim-sulfamethoxazole | 90.7% (49) | 58.7% (27) | 26.7% (4) | 0.0% (0) | <0.001 |
Ampicillin | 31.5% (17) | 30.4% (14) | 60.0% (9) | 8.7% (2) | <0.05 |
Kanamycin | 0.0% (0) | 2.2% (1) | 20.0% (3) | 21.8% (5) | <0.001 |
Sulfisoxazole | 0.0% (0) | 10.9% (5) | 0.0% (0) | 0.0% (0) | NA |
Neomycin | 0.0% (0) | 2.2% (1) | 1.7% (1) | 1.7% (1) | NA |
Streptomycin | 0.0% (0) | 0.0% (0) | 1.7% (1) | 0.0% (0) | NA |
Gentamicin | 0.0% (0) | 0.0% (0) | 0.0% (0) | 0.0% (0) | NA |
Colistin | 0.0% (0) | 0.0% (0) | 0.0% (0) | 0.0% (0) | NA |
Chloramphenicol | 0.0% (0) | 0.0% (0) | 0.0% (0) | 0.0% (0) | NA |
Cephalothin | 100.0% (52) | 100.0% (60) | 100.0% (15) | 100.0% (23) | NA |