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Prevalence and expression of staphylococcal enterotoxin genes in Staphylococcus aureus isolated from food poisoning outbreaks

2017/08/18 by Caroline Peixoto Bastos, Milena Bassani, Milena Tomasi Bassani +5
Biochemistry, Genetics and Molecular Biology · Medicine · #Antimicrobial Resistance in Staphylococcus #Bacterial biofilms and quorum sensing #Microbial Metabolism and Applications

paper · doi:10.1139/cjm-2017-0316

openalex publication_date 2017/08/18 · openalex created_date 2017/08/31 · openalex updated_date 2026/08/01

Abstract

Staphylococcus aureus is an important pathogen of foodborne origin. The pathogen produces a variety of toxins that include the staphylococcal enterotoxins (SE). The present study aimed to evaluate the prevalence and expression of 5 SE genes (sea, seb, sec, sed, and see) in S. aureus isolated from outbreaks occurred in the state of Rio Grande do Sul, Brazil. All isolates, with the exception of 2, presented the same or higher transcriptional expression than the reference strains for at least 1 of these genes. The presence of SE genes combined with high levels of transcriptional expression suggests that 1 or more SEs were involved with the staphylococcal food poisoning outbreak analyzed in the present study.

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