Comparative study of resistance to antibiotics of strains of Klebsiella isolated in urinary and respiratory infections

Results The resistance to antibiotics was higher in Klebsiella pneumoniae strains isolated from urine culture compared to those isolated in respiratory infections in case of: a) beta-lactams (ceftriaxone 45.2% versus 69.5%, cefaclor 36.7% versus 52.9%, cefuroxime 49.3% versus 61.9%, cefoperazone-sulbactam 70.6% versus 85.7%, piperacillintazobactam 58.1% versus 75.5%, aztreonam 45.8% versus 66.6%, ampicillin-sulbactam 46.4% versus 69.1%, amoxicillin-clavulanic acid 26.8% versus 40.5%), b) quinolones (ciprofloxacin 61.8% versus 83.4%), c) co-trimoxazole (45.4% versus 82.8%). The sensitivity profile showed no major differences for: colistin (82.7% versus 81.6%), carbapenems (95.2% versus 97.8%) and aminoglycosides (72.3% versus 75.8%).