National Antimicrobial Resistance Monitoring System

National Antimicrobial Resistance Monitoring System For Enteric Bacteria

Table 18. Antimicrobial resistance of Shigella isolates, 2000

Antibiotic All Shigella Shigella sonnei Shigella flexneri Shigella boydii (N=451) (N=367) (N=75) (N=7) # Resistant % Resistant # Resistant % Resistant # Resistant % Resistant # Resistant % Resistant Amikacin 1 0.2 1 0.3 0 0 0 0 Amoxicillin – 10 2.2 7 1.9 3 4.0 0 0 Clavulanic Acid Ampicillin 356 78.9 295 80.4 58 77.3 1 14.3 Apramycin 1 0.2 1 0.3 0 0 0 0 Cefoxitin 2 0.4 2 0.5 0 0 0 0 Ceftiofur 0 0 0 0 0 0 0 0 Ceftriaxone 0 0 0 0 0 0 0 0 Cephalothin 36 8.0 32 8.7 2 2.7 0 0 Chloramphenicol 63 14.0 10 2.7 52 69.3 1 14.3 Ciprofloxacin 0 0 0 0 0 0 0 0 Gentamicin 1 0.2 1 0.3 0 0 0 0 Kanamycin 6 1.3 6 1.6 0 0 0 0 Nalidixic Acid 5 1.1 5 1.4 0 0 0 0 Streptomycin 258 57.2 206 56.1 46 61.3 4 57.1 Sulfamethoxazole 252 55.9 206 56.1 40 53.3 4 57.1 Tetracycline 202 44.8 126 34.3 69 92.0 5 71.4 Trimethoprim - 239 53.0 202 55.0 32 42.7 3 42.9 Sulfamethoxazole