|
Antimicrobial susceptibility of Eschericia coli isolates from Arie river (Romania)Keywords: Escherichia coli , antibiotic resistance , multiple antibiotic resistances , Arie River , water Abstract: We studied the prevalence of antimicrobial resistance (AR) and multiple antimicrobial resistances (MAR) among the faecal bacteria found in the Arie river (Romania) affected by strong anthropogenic pressures. Isolation and identification of E. coli were done by using enrichment media, selective media, and biochemical tests. Antimicrobial susceptibility testing by the disk diffusion method was conducted for 12 antimicrobial agents: ciprofloxacin, gentamicin, streptomycin, ceftazidin, ofloxacin, sulfamethoxazole, ticarcycline, ampicillin, nalidixic acid, nitrofurantoin, erythromycin, and norfloxacin. The data of the antimicrobial susceptibility reviled that all the studied E. coli strains were resistant to most of the tested antibiotics. The analysis of antibiotic resistance frequencies has showed an incidence of 46.66% strains resistant to more than 4 different antibiotics. Moreover, a high incidence of multiple antibiotic resistances was detected in each of the studied samples.
|