The
strains were screened for their resistance to the following antibiotics
(Marnes-La-Coquette, France): nalidixic acid Na 30 μg; ciprofloxacin
CIP 5 μg; ceftazidime CAZ 30 μg; amoxicillin-clavulanic acid AMC
20+10 μg; cefoxitin FOX 30 μg; cefotaxime CTX 30 μg; lincomycin,
MY 15 μg; fusidic acid FD 10 μg; tetracycline TE 30 UI; teicoplanin
TEC 30 μg; gentamycin CN 15 μg; vancomycin VA 30 μg; Rifampycin
RD 30 μg; amikacin AK 30 μg; ertapenem ETP 10 μg; cephalothin KF
30 μg; aztreonam ATM 30 μg; ampicillin AM 10 μg; trimethoprim/
sulphamethoxazole SXT 1.25/23.75 μg and norfloxacin NOR 5 μg. We
used the Automated System (OSIRIS) for reading and interpreting
results (Bio-Rad).