Per¿l de resistência a antimicrobianos, fagotipagem e caracterização molecular de cepas de Salmonella Enteritidis de origem avícola Antimicrobial resistance pro¿le, phage typing and molecular characterization of Salmonella Enteritidis strains from poultry origin

Salmonella enterica subsp . enterica serovar Enteritidis (SE) is currently responsible for signi?cant losses in the poultry industry with consequences on public health. In the present study, 38 SE isolates from biological material of chicken breeders were characterized using phage typing, antimicrobial resistance pro?le and pulsed ?eld gel electrophoresis (PFGE). The phage type (PT) 7 and 9 were predominant and 26.3% of the isolates were resistance to nalidixic acid (NAL). The phage typing and analysis of antimicrobial resistance pro?le showed high discriminatory power (0.85). The PFGE pro?le of 13 strains with Xba I and Spe I discriminated the SE phage types, as well characterized strains from the same serovar. The results showed the importance to associate different methods for the characterization of SE and suggest that poultry products may have been source of human salmonellosis in the Parana State during the period of study.