Table 5.

Antimicrobial patterns found among the 6 XDR strains.

Antimicrobial Pattern	N. of Strains
AMP, FOX, CTX, EFT, ETP, ATM, C, TE, ENR, CIP, CN, AK, SXT	1
AMP, FOX, CTX, IMP, ETP, C, TE, ENR, CIP, AK, SXT	1
AMP, AMC, FOX, C, TE, ENR, CIP, CN, SXT	1
AMP, AMC, FOX, CTX, ETP, C, TE, ENR, CIP, SXT	1
AMP, CTX, EFT, C, TE, ENR, CIP, CN, SXT	2

Legend. AMP: ampicillin; AMC: amoxicillin-clavulanate; AK: amikacin; ATM: aztreonam; C: chloramphenicol; CIP: ciprofloxacin; CN: gentamicin; CTX: cefotaxime; EFT: ceftiofur; ENR: enrofloxacin; ETP: ertapenem; FOX: cefoxitin; IMP: imipenem; SXT: trimethoprim-sulfamethoxazole; TE: tetracycline.