Occurrence and Variety of β-Lactamase Genes among Aeromonas spp. Isolated from Urban Wastewater Treatment Plant

Members of the genus Aeromonas that commonly occur in various aquatic ecosystems are taken into account as vectors spreading antibiotic resistance genes in the environment. In our study strains of Aeromonas spp. (n=104) not susceptible to ampicillin were isolated from municipal sewage of different levels of purification - raw sewage, activated sludge and treated wastewater. The crucial step of the study was the identification of β-lactamase...