Evaluation de la résistance des souches d'Escherichia coli et Staphylococcus aureus aux antibiotiques dans les infections urinaires (wilaya de Ghardaïa – région Metlili)

Abstract

This study focuses on the evaluation of the effect of different antibiotics on the bacterial strains (Escherichia coli and Staphylococcus aureus) responsible for urinary tract infections. Statistics have been conducted on cases of urinary tract infections in habitant of Metlili district (town);recorded at the laboratory services of medical analysis by DR LAROUI during the fifth years later. The epidemiological results of the ECBU analysis test show on a total of 4085cases, that the majority of ECBU are negatives (72.42%), but the percentages of positives results (27.58%) remain significant. The E. coli bacterium is the most frequent (91.83%) followed by the S. aureus bacterium with a percentage of (8.17%). We observed that these infections related to the age and sex of the patients. Either the adult age group (18-70 years) is the most affected, and the sex female is the most common. The study of the E. coli resistance to antibiotics, showed a resistance superior than 80% to the family of β-lactams (Amoxicillin, Amoxicillin + clavulanic acid) and polipeptides (Colistin). In addition, strains of S. aureus show notable resistance to the β-lactam family (Penicillin G, Oxacillin, Amoxicillin and Amoxicillin + Clavulanic acid). However, the antibiotics Gentamicin, Amikacin, Ofloxacin and Imipenem show zero resistance where they retain a high-quality activity profile on both strains with a sensitivity percentage of 100%.