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Brazilian Journal of Microbiology

Print version ISSN 1517-8382On-line version ISSN 1678-4405


CARDOSO, Martha Oliveira et al. Antibiotic resistance in Salmonella Enteritidis isolated from broiler carcasses. Braz. J. Microbiol. [online]. 2006, vol.37, n.3, pp.368-371. ISSN 1517-8382.

Eighty Salmonella Enteritidis strains isolated from broiler carcasses between May 1995 and April 1996 in the State of Rio Grande do Sul, Brazil, were tested for antibiotic susceptibility using the disk diffusion method. Resistance to colistin, novobiocin, erythromycin and tetracycline was observed in 100% of the isolates. The strains showed intermediate resistance at different levels to kanamycin (1.25%), enrofloxacin (3.75%), neomycin (3.75%), fosfomycin (20%), sulphonamides (86.25%) and nitrofurantoin (90%). Resistance to ciprofloxacin, norfloxacin, gentamicin, polymyxin B, sulphametrim and sulphazotrim was not found. Since resistance to antibiotics especially those introduced in the last decades, was detected, it is recommended that their use must be based on the results of resistance tests or minimum inhibitory concentration tests.

Keywords : antibiotic resistance; broiler carcasses; Salmonella Enteritidis.

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