EN
Sensitivity to chemotherapeutic agents of 57 strains of Enterobacteriaceae isolated from different food products was examined. Significant differences of sensitivity in particular chemotherapeutic agents were found. The largest number of strains was resistant to penicillin (94.7% of all isolated strains). The percentage of strains resistant to trimethoprim was 63.2%, rifampicin - 56%, sulfamethoxazole - 47.4%, ampicillin - 42.1% and erythromycin - 38.6%. Lower percentages of strains were resistant to nitrofurantoin (26.3%), carbenicillin (22.8%), chloramphenicol (14%), oxytetracycline (12.3%), doxycycline and biseptol (10.5%), colistyn (8.8%). The resistance to neomycin, nalidixic acid and gentamycin was to not detected among the isolated strains.