Dissemination of sulfonamide resistance genes (sul1, sul2, and sul3) in Portuguese Salmonella enterica strains and relation with integrons.

Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Rua Aníbal Cunha, n(o)164, 4050-047 Porto, Portugal.
Antimicrobial Agents and Chemotherapy (Impact Factor: 4.45). 03/2005; 49(2):836-9. DOI: 10.1128/AAC.49.2.836-839.2005
Source: PubMed

ABSTRACT In 200 sulfonamide-resistant Portuguese Salmonella isolates, 152 sul1, 74 sul2, and 14 sul3 genes were detected. Class 1 integrons were always associated with sul genes, including sul3 alone in some isolates. The sul3 gene has been identified in isolates from different sources and serotypes, which also carried a class 1 integron with aadA and dfrA gene cassettes.

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