Rastreamento de fontes poluidoras de um corpo hídrico usando perfis de resistência a antimicrobianos em bactérias entéricas (Ceará, Brasil)

Abstract

Currently there is great concern about the increasing levels of antimicrobial resistant microorganisms. In aquatic environments the discharge of faecal pollution, agricultural practices and the use of uncontrolleddrugs, contribute to the increase in resistance levels. This study aimed to monitor resistance in bacteria Enterococci group to the use of antimicrobials in human clinical and veterinary as a method to track potential contributors sources and enable more efficient management of resources, on eightsamples of water and sediment in lagoon Catu in Fortaleza -CE.To achieve this objective, was performed an antibiogram of 35 strains of enterococci to antibiotics: ampicillin, chloramphenicol, ciprofloxacin, sulfamethoxazole + trimethoprim, cephalothin, erythromycin, Novobiocin, Tetracycline, nitrofurantoin, gentamicin, oxacillin and Nalidixic acid.Antimicrobial resistance has been observed in 94.2% of the strains. The predominant profile was resistance to Oxacillin, Acid Nalidixic and Tetracycline, respectively with 95%, 90% and 85%. For intermediate profiles, the results were more predominant with Eritromicin and Cephalothin with 42% and 38%. Has been observed that the isolate obtained in the points C3 to C13 located near the dunes had a lower resistance profile compared to the isolates from the points closer urban areas that show multiple resistance profiles. The results of this study indicate that the resistance of these microorganisms are related to agricultural practices and agricultural